Goosh Share definition Flag A person who gets really horny and cums in there trousers. Gooshes are also bisexual. Look at that stupid Goosh he makes it so obvious that he's cumming in his trousers!!! Goosh by Evilkid(bum boy) July 16, 2010 0 0 Get merch Get the Goosh mug. Buy Now — $32.95 See more merch