Anal Penetration; anal sex
He turned her around and gave her some AP (anal penetration).
by zoneblitz October 29, 2007
Also known as another party, or advanced placement
I'm goin ap tonite bro.
by Big George September 18, 2005
AP stands for Algerian Police, the Algerian Police are notorious in the 80's for their abuse of authority. In Sept. 1984 a group of AP's commited a massive "rape fest" over 240 women were forced into this "local festival" as they called it. The Algerian government still remains silent of the corruption of the 80's for their mobster like civil servants.
The AP slept with my girlfriend.
by Rocky Simler May 14, 2004
slang used by lp (little people-short statured people) they use ap as to *average height people*
lp talking to another lp: "my friend meg is an ap"
by Katee February 06, 2004
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 September 30, 2003
something coo. also ADVERSARIAL POLARITY
hey man that's pretty AP stuff

Throughout the Cold War, the fate of the earth rested in the perfect balance of the American and Soviet ADVERSARIAL POLARITY.
by EDIX September 22, 2003
A common acronym, defined as Armour Piercing
The 65 Grain M995 Armour Piercing round ripped that mutha fucka a new one despite his PACA Millenium level IIIA vest.
by Kalashnikov June 01, 2003
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