Top definition
The act of being so stupid that you always ruin every single chance you get at getting laid
Guy1: That guy sucks at getting girls.... Guy2: If only he'd stop self-cockblocking, then just maybe he'd lose his virginity.
by Xero _ Manifest October 22, 2010
Get the mug
Get a Self-cockblocking mug for your mother-in-law Rihanna.