AP or "Armor-piercing shell" is a type of ammunition that is designed to penetrate (you guessed it) armour. It is mostly known because of its service in WW1 and WW2 in tanks, warships and anti-tank weaponry. This type of ammunition was slowly abadoned during the 1950s due to the need of ammunition with higher efficiency and penetration due to the introduction of cold-war era MBTs (Main Battle Tanks) and active/passive armour. A few other types of ammunition that were widely used in WW2 are: APCR (Armour Piercing Composit Rigid), HE (High Explosive), HEAT (High Explosive Anti Tank), HESH (High Explosive Squash Head) Modern era ammunition used in the T-62 U-5TS gun: APFSDS (Armour-piercing fin-stabilized discarding sabot), DU (Depleted Uranium), ATGM (Anti Tank Guided Missile)
Commander: Load AP.
Loader: UP! (Ready)
*Firing gun*
AP is an abbreviation for After Party. There is typically an AP after a formal event such as Prom or a Wedding.
The actual abbreviation is typically used by teenagers while the full word is used by aged people.
Hey man, you gonna go to Jordans AP?
To be top of the line, the real MVP
Yo my son Josh is AP for throwing this litt ass party
Ap- After party
“Yo, where is the ap?”
“Is there any ap’s tonight?”