kijizzle
use it whenever you feel like it. or whenever it sounds good. no really strict definition. can be used pretty much anytime, but mostly when happy or saying yes. opposite of blahmafragulus.
person1: are you coming to the thrice concert?
person2: you know it.
person1: kijizzle! see you there.
person2: you know it.
person1: kijizzle! see you there.