A party that takes place inside of an apartment. Usually involves other members of the apartment complex getting angry at excessive noise and calling the cops.
Luke: Connor, hide the fucking Monarch, the 5-0 is about to bust this APARTAPARTY
Connor: Shit, I'll put it in Donna's room.
Connor: Shit, I'll put it in Donna's room.
by Milfcreek August 25, 2010