When someone is on top of their game- when all is going perfect for someone- they killin' it

Masterbation; Whacking off; touching one's self

The highest possible level of satisfaction with life only to be achieved by young white males who often go to parties, have plenty of money, and slay poon on the reg. You only know you're 'Killin' it' when you're plastered, throwin up the Shaka (surfers' hand gesture), and yelling "I'M KILLINNNN ITTTTT"

A series of actions that puts the world's hardest workers to shame, it would look similar to Rocky Balboa as the wolf of wall street.