1. Yes
2. Song title (when one has no brains to come up with another one)
3. A reply used at someone when they say something REALLY stupid in order to show them you do not give a rat's ass.
1. Yea
2. YEA! YEA! YEA! YEA!
3. Idiot: Do youprefer these shoes or these shoes?
Guy: ... Yea.