This expression is used to express extreme excitement or satisfaction towards something or someone. Can also be said as "OH DIGGA!"
Myles: Dude, I just got a new drum set.
Sonny: OH JIGGA!
Ryan: My uncle just bought me a new guitar.
Sonny: OH JIGGA!
Hot Girl: Want a blow job?
Sonny: OH JIGGA!
Sonny: OH JIGGA!
Ryan: My uncle just bought me a new guitar.
Sonny: OH JIGGA!
Hot Girl: Want a blow job?
Sonny: OH JIGGA!
by Sonny the Stuntman December 19, 2008