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1.
An event, whether spoken or an action, that allows for a fun-filled occassion to become even better; an event that that initiates the first happenings of fun. The opposite of a buzzkill
Dude, last night we were just sitting around mark's place and then B-squared showed up with a pizza and Halo: Reach. Yeah I know it doesn't come out for another two months. IT was a TOTAL buzzbirth dude!

Omgsh! I'm having so much fun at this LMFAO concert! wait..whos that coming out on stage? OMGSH!!! its Drake and Passion Pit! BUZZBIRTH!
by Grecianetymology October 06, 2010