1) Definition: To party and drink so hard, by the end of the night you'll fuck anything including a tank full of fish. 2) Origin: Mr. M. at the end of a Nov 2013 night of partying in Pattaya, Thailand, was caught on camera fucking a fish tank, and upon seeing the posted photos the next day with no recollection of the night before, posted "fuck the fish."
by PA: AmexSpg November 13, 2013