The act of buying one movie ticket, then after the paid for film is done, going into a different movie that is starting.
Truffles and the big cotton candy mountain wasn't worth the 20 bucks, so we were multiplexing all night. We saw Big tits 7, The return of the return of the scorpion king, Friday the 14th, and other block busters!
roommate :"dude, what was w/ that girl's screaming last night?! i couldnt sleep!"
guy: "Yeah sorry, she's not used to multitaking; she wasnt quite ready
EXAMPLE 2 Guy 1: "That bitch is such a slut!"
Guy 2: "I KNOW! I bet she multitakes EVERY day!"