Fat

Your mother.

dan: "yo mama so fat she couldn't reach her back pocket"
jimmy: "Yo momma is so fat that when she went to the beach a whale swam up and sang, "We are family, even though you're fatter than me.""
dan: "that was stupid. you see this is exactly why your father left"

Error 404

A web error when a part of a website couldn't be found, also could be used for he situation your father is in right now.

jimmy: "what does error 404 not found mean?"
Dan: "kind alike your dad, when a requested resource cant be found"
jimmy: :(