because they figure you wont break the deal if you did something thats revolting to you . to seal the deal
* If a person does not extend their hand to be shaken then don't shake their hand. If you are making a deal in business or if you have made up with a friend (especially males) then you can extend your hand to be shaken. Shaking hands is to seal a deal of good faith in all areas of society.
The past tense of Spit is Spat. I spat on my hand.
seal the deal
They drink the water and spit it out
That sea lion looks a lot like a seal. I hope to seal the deal today! This draft now has my seal of approval.
His Hand and Seal - 1915 was released on: USA: 19 October 1915
spam click 'No seal'
Misdirected - 2013 Seal the Deal 1-4 was released on: USA: 27 May 2013
JAG - 1995 Real Deal SEAL 5-23 was released on: USA: 9 May 2000
Arrows
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The 'Spit Handshake' originated around the 14th century in modern day Czechoslovakia. Working class individuals often had dry and callous hands due to hard labour, so when handshaking an individual they experienced some pain. In fact there was an account, (fabricated most likely) of two men's hands spontaneously conbusting due to the friction generated from their handshake. To counter this pesky and common problem, Hans Spitstein developed the 'Spit Handshake' in which both parties would lubricate their hands before commencing the act. Obviously as these were working class men, oil was not readily available and so spit was used as a replacement. Over time the act of spitting on one's hand and offering it became viewed as an act of respect and trust, involving into the 'Spit Handshake' we know and love. Sources: A Brief History of the Handshake