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verb
To accurately and specifically predict the reaction of someone to a situation or stimulus, showing acute insight into and observation of (or just over-familiarity with) the subject.

Named after alias of the first recorded example of "deuce-ing." Not meant to belittle the subject, but rather, to praise the observatorial powers of the deuce-er.
Time: 1:15
Place: Outside, across street from bar
Jeff and Peter observe John walking in the general direction of bar

Jeff: "Hey, ask John if he's getting a Martini or a Mimosa."
Peter: (Checks watch) To Jeff: "He'll say it's too late for a Mimosa." Yells To John: "Are you getting a Martini or a Mimosa?"
John: (Checks watch) To Peter: "It's too late for a Mimosa."

Jeff & Peter: (Laugh)
Jeff: (To Peter) "Dude, you totally deuced him."
deuce by jmiller September 7, 2006
the most boringest bro ever...whoa!!!! tqz!
x: ayo tqz!

tqz: whoa! call me deuce bro! whoa!
deuce by xdeuceWHOA!x12 February 14, 2008
Duece is soo cool...shes amazing!
Deuce by Katinka November 11, 2003
When you're in a regular, mutual, sex only relationsihp with a someone and you (or they) still got to be sleepin' with other people.
He's not really my boyfriend.....he's just my Deuce!
Deuce by dacia November 18, 2003
When one shits in their own hand and punches someone with a clenched fist full of shit. The move works properly when hitting someone in the face with a loosely clenched fist so upon impact of the jaw, shit squirts out between the fingers onto the victims face.
The first one to pass out tonight is going to get deuced!
Deuce by !InItToWinIt! January 30, 2008
the act of shitting, also can be substituted for any word
dude i just deuced it out in the bathroom. dude your face is a deuce! dude ill drop a deuce on you punk!
Deuce by GOD September 9, 2003