Armour Piercing. A steel, needle like bullet often cased in rubber, lead or plastic. The high velocity projectile can penetrate steel, and pierce bulletproof jackets. AP may also refer to other bullets that can pierce armor, such as .223s or 5.7x28mm rounds.
"Yo vest might stop a nine but they wont stop mine, A-P, and next you know youse lying down dead."
by .357ROB October 1, 2003
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dude. that rice rocket is so AP.
that cup of noodles is AP too.
so is boba.
by bethany January 11, 2004
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"Thou shalt Address the Prompt on an AP examination." - The Eleventh Commandment.

"AP. Address the Prompt. And no, that is MY idea, not Davies' idea." - C-Dogg
by KidGudi March 2, 2010
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When a person acts like a fool, and/or does something completely clumsy. Usually a term for when someone is intoxicated or high.
This kid just knocked over a TV, he's a fuckin Ape!
by Will Jerauld March 17, 2013
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Acute Pussy Syndrome.

A tendency of a person in which they claim to be ready to do something, (i.e get with a girl,) and back out of the situation for no apparent reason.
A: Dude, Jimmy was with Theresa last night and she's been telling everyone she would fuck him in a second.
D: I know man, but he never takes up an opportunity like that, he's got APS.
by poolu April 3, 2009
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*Another term for a gorilla.

*A racist slur toward a black person (because of the physical similarities between black people and monkeys).

*A term referring to a person who lacks intelligence.
"Donkey Kong is an ape."

"Don't call a black person an ape please...."

"C'mon you dumb apes! We gotta get goin' before New York's Finest catches up!"
"What the hell're you waitin' for ya apes?! Kill him!"
by Dave May 19, 2004
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