A flush

A flush is 5 cards of the same suit that are not sequential.

Example of a Flush:

2 of hearts (♥)

5 of hearts (♥)

7 of hearts (♥)

8 of hearts (♥)

King of hearts (♥)

Not a Flush:

4 of clubs (♣)

5 of clubs (♣)

6 of clubs (♣)

7 of clubs (♣)

8 of clubs (♣)

(The above would be a "straight flush")

I only pay attention to blackjack (I play for a living), and I assume you're referring to the MGM in Las Vegas.

Here it is from the Penal Code:

330a. Every person, who has in his possession or under his control, either as owner, lessee, agent, employee, mortgagee, or otherwise, or who permits to be placed, maintained or kept, in any room, space, inclosure or building owned, leased or occupied by him, or under his management or control, any slot or card machine, contrivance, appliance or mechanical device, upon the result of action of which money or other valuable thing is staked or hazarded, and which is operated, or played, by placing or depositing therein any coins, checks, slugs, balls, or other articles or device, or in any other manner and by means whereof, or as a result of the operation of which any merchandise, money, representative or articles of value, checks, or tokens, redeemable in, or exchangeable for money or any other thing of value, is won or lost, or taken from or obtained from such machine, when the result of action or operation of such machine, contrivance, appliance, or mechanical device is dependent upon hazard or chance, and every person, who has in his possession or under his control, either as owner, lessee, agent, employee, mortgagee, or otherwise, or who permits to be placed, maintained or kept, in any room, space, inclosure or building, owned, leased or occupied by him, or under his management or control, any card dice, or any dice having more than six faces or bases each, upon the result of action of which any money or other valuable thing is staked or hazarded, or as a result of the operation of which any merchandise, money, representative or article of value, check or token, redeemable in or exchangeable for money or any other thing of value, is won or lost or taken, when the result of action or operation of such dice is dependent upon hazard or chance, is guilty of a misdemeanor, and shall be punishable by a fine not less than one hundred dollars ($100) nor more than one thousand dollars ($1,000), or by imprisonment in the county jail not exceeding six months, or by both such fine and imprisonment.

Penal Code Sec. 330b.

Possession or keeping of slot machines or devices.

(a) It is unlawful for any person to manufacture, repair, own, store, possess, sell, rent, lease, let on shares, lend or give away, transport, or expose for sale or lease, or to offer to repair, sell, rent, lease, let on shares, lend or give away, or permit the operation, placement, maintenance, or keeping of, in any place, room, space, or building owned, leased, or occupied, managed, or controlled by that person, any slot machine or device, as defined in this section.

It is unlawful for any person to make or to permit the making of an agreement with another person regarding any slot machine or device, by which the user of the slot machine or device, as a result of the element of hazard or chance or other unpredictable outcome, may become entitled to receive money, credit, allowance, or other thing of value or additional chance or right to use the slot machine or device, or to receive any check, slug, token, or memorandum entitling the holder to receive money, credit, allowance, or other thing of value.

(b) The limitations of subdivision (a), insofar as they relate to owning, storing, possessing, or transporting any slot machine or device, do not apply to any slot machine or device located upon or being transported by any vessel regularly operated and engaged in interstate or foreign commerce, so long as the slot machine or device is located in a locked compartment of the vessel, is not accessible for use, and is not used or operated within the territorial jurisdiction of this state.

(c) The limitations of subdivision (a) do not apply to a manufacturer's business activities that are conducted in accordance with the terms of a license issued by a tribal gaming agency pursuant to the tribal-state gaming compacts entered into in accordance with the Indian Gaming Regulatory Act (18 U.S.C. Sec. 1166 to 1168, inclusive, and 25 U.S.C. Sec. 2701 et seq.)

(d) For purposes of this section, "slot machine or device" means a machine, apparatus, or device that is adapted, or may readily be converted, for use in a way that, as a result of the insertion of any piece of money or coin or other object, or by any other means, the machine or device is caused to operate or may be operated, and by reason of any element of hazard or chance or of other outcome of operation unpredictable by him or her, the user may receive or become entitled to receive any piece of money, credit, allowance, or thing of value, or additional chance or right to use the slot machine or device, or any check, slug, token, or memorandum, whether of value or otherwise, which may be exchanged for any money, credit, allowance, or thing of value, or which may be given in trade, irrespective of whether it may, apart from any element of hazard or chance or unpredictable outcome of operation, also sell, deliver, or present some merchandise, indication of weight, entertainment, or other thing of value.

(e) Every person who violates this section is guilty of a misdemeanor.

(f) Pinball and other amusement machines or devices, which are predominantly games of skill, whether affording the opportunity of additional chances or free plays or not, are not included within the term slot machine or device, as defined in this section.