Two friends are arguing and one friend says, "Jason Warhis is not afraid of water and not ifs, ands, or buts about it."
And the other friend says, "Butt he is."
Alright, listen up, nimrod. The joke is a pun. One friend claims Jason Warhis ain't scared of water, period. The other replies, "Butt he is," using "butt" as in behind, and "but" as in however. It's funny 'cause you're dumb and didn't get it.