Similar to jizzed or ejaculated it means to come in a volatile fashion usually due to an extremely magnificent outcome.
This weed is so good I think I just yazzed myself.
by Yazzington Razzlemaboo December 29, 2008
fucked up; drunk off your ass like Slamdunk Yazzerbrann
Damn son, last night I was straight yazzed off that capt.
by Jimmy Materbury December 08, 2006