a term that means totally awesome. like unbelievably, completely, stupendously, amazing!! when something is so cool, cool just doesn't cut it. it can also include a fist pound or high-five with it.
Bob: I just won 1,000,000,000 dollars in the lottery!!!
John: BOOMSHAKALAKA BOOYAKASHA!!!!!!
Perry: I just totally nailed that that smokin, blonde chick.
Turk: Boomshakalaka Booyakasha!! YA NO WAT IM SAYIN!?!?!
The verb to pimp or the adjectivepimpin, often used on the popular TV show "The Ali G Show" in which case he uses it to refer to himself as "yo im a pimp"
BuYaKasha, hur i is at za chignisle wisle wit ma main mandr. phil whose gun talk tus bout are willy wangs