superlative form of baller, which is the comparative form of ball.
ball < baller < ballest
"you think you're a baller? im the ballest"
"a McLaren F1 is the ballest car you can buy"
"Bill Gates is a baller, but Warren Buffet just became the ballest"
someone you know, but do not necessarily like, but cannot seem to get rid of. a "friend" in your group that no one claims to introducing to everyone, an ex-significant other who you still have sexual relations with, or a family member that you feel obligated to invite to get togethers.
friend: "man, who invited Bob to the party?"
other friend: "not me, but someone here had to bring that Shitbird"
dude: "man, it's been a long time since i got any play, im calling what's-her-face"
other dude: "oooooooh, bootycalling the Shitbird!"
uncle: "you know we don't approve of your brother and his 'wife'. why did you bring them to my party?"
nephew: "it's not my fault, he saw me making the beer run, i had no idea i was going to be Shitbirding today!"