- A flooskin is where a guy stretches his ball sack and a girls takes a shot of any hard liquor off his ball sack while it's stretched out.
- A flooskin could also mean any word you want it to be.
"Hey darryl, can I have a flooskin?"
"Sure, lemme stretch my ball sack and grab the whiskey"
Or..
"Hey can I borrow a flooskin, I only got to hooskins left?"
A slut that gives a blowjob and handjob. She also gets eaten out and fingered IN 1 NIGHT. She is so loose no one would ever do her. Not even a kiss, because of all of the coldsores.
That girl turned into a floosie to get another guy, because she thought he liked floosies. The joke is on her. No one likes her.