Jizzblast, mainly used in porno's, describes when a man sprays his hot load i.e. ejaculates, all over their partner, usually on the face or titties.
by Jesus Rammsbottom January 02, 2007

Damn, Ian jizzblasted so hard he hit his dog, and then the dog licked it up, and then he did it again coz it was pretty damn funny.
by Jesus Rammsbottom December 11, 2008
