Flipper Football has an Adult Mode. Then the referee is a lot more liberal with farts, burps and belches, and speech.
Let the ball sit in the launcher for a while. The DMD shows the referee smacking the player in the head, then saying, "C'mon! Kick the f**kin' ball!"
Other things:
"Hey! Let's talk about your sister!"
"Where you f**kin' going?"
"Hey! You! Sh*t for head!"
"F**kin' I don' know..." (like Lupo the Butcher)
There are others...