Funniest lines in the movie

Bartender: (chasing dog out of the bar)
Rex the cabbie: Why do you call him No Balls?
Bartender: It's not a him, it's a she.

and

Questioner: Do you have any pets, Rex?
Rex the cabbie: I have a dog.
Questioner: What's his name?
Rex the cabbie: Dog
Questioner: Dog? Why do you call him just Dog?
Rex the cabbie: Rex was already taken!

ROTFLMAO

Holy smokes... 99 channels and there's nothing on! - The Kid (2000) 