The sound a germanprostitute makes during sex.
It can also be made randomly when you are lifting something heavy or hard work. Or even randomly in the middle of a sentence.
1. "OOSK YEEAH YEAAAAH"
2. chris: ready to lift this
tom: yeah chris: 3,2,1
tom: oooosk!
3.matt: then she gave him a rim job.
hailee: bet she was all like 'oosk'
matt: the slut.