Clothing and/or make-up that a hooker/streetwalker/prostitute might wear.
1) "I wanna' to get laid tonight so I'm gonna wear my prostisuit out to the club."

2) My girlfriend puts on her prostisuit so I can smack her around a little and fuck her like a dirty whore.
by Klark_Kent February 10, 2011
Get the Prostisuit mug.
any manner of garment or clothing worn by prostitutes
You know she got paid yesterday because she's wearing a new prostisuit tonight.
"John" ripped Apple's new prostisuit.
by mooncub1983 December 27, 2013
Get the prostisuit mug.