You've mis-heard something, because as it is, it means nothing. I just can't decide which term you may have heard.
"Up and at 'em" would mean "collect yourself and work hard to succeed at whatever project is at hand" while "up the ante" would mean "to increase the stakes."
The Latin word ante meridiem refers to "before noon" in English language.
During the game I decided to put up- the- ante.
"Up the ante" is a poker-derived idiom that means to raise the stakes, to put more at risk, both in poker and in one's personal life. The ante is the enforced bet that poker players must put into the pot before they can play a hand of poker. If you "up the ante," you increase the amount of the bets. Thus, upping the ante means to raise the stakes or increase the risk of a project. You can "ante up" any amount - some people play for pennies, and some for thousands of dollars.
a.m. (from the Latin, ante meridiem, meaningbefore midday)and p.m. (post meridiem, meaning past midday).
Before Christ (as in before a statue of Christ - usually on the cross).
Each player's stake, which is put into the pool before (ante) the game begins., To put up (an ante).
The Latin word ante meridiem refers to "before noon" in English language.
Ante cibum - before food; i.e., before eating
ante meridiem
The duration of Ante Up - film - is 1.8 hours.
The prefix "ante-" comes from Latin, meaning "before."
Ante Up - film - was created on 1974-11-14.
Are you going to ante up or sit this hand out, Dallas? That ups the ante considerably. I don't ante up with anyone that uses a city as their first name.
During the game I decided to put up- the- ante.
The cast of Ante Up - 2006 includes: Allen Keng
Ante Up - 2010 was released on: USA: 25 April 2010
"ante" is a prefix meaning "before" eg. antechamber, antebellum "anti" is a prefix meaning "against" eg. anti-inflammatory, anti-war protestor