What is Zaaaa?
1.
An expression of excitement.
When one is really happy about something they often zaaaa, the more a's used the more the excitement.
Tim: Hey Joe, did you hear about the new xbox360?!
Joe: Uhh... that came out like 6 months ago you moron.
Tim: It did? Oh well I'm getting one on Sunday omgomg Zaaaa!
See