When something slaps so hard that you feel the urge to whip out a banjo.
Gray: Man this new song is bussin out the banjo
describing something good or in a positive way
boy this chicken bussin out the seams
When someone or something is so big that it pokes out of your pants.
Dayuuuummmm shordy ass was bussin’ out the jeans!
Banging hot as hell wanna beat that pussy up!
Man that girl in class is bussin out big time
Grandma that cookie you gave me was bussin out the jeans