Proof by lack of evidence

The proof by lack of evidence fallacy is claiming something is true simply because nobody has yet given any evidence to the contrary.

Torturer: You are a heretic! You can't prove that you aren't one, so you are a heratic. Confess, or we will stretch your body out until you are a foot taller.

Accused: Ha, you did it - you committed the proof by lack of evidence fallacy!

Torturer: That's enough out of you. Brutus, give the wheel another turn.

Runny dog

The aftermath when your dog eats even the slightest amount of cat food and "has the runs" all over the floor.

"Did that dog get into the cat food again? I'm tired of having a runny dog"

Fallpea

A child born typically in the fall season.

I just had a fallpea! He's so cute you wouldn't believe it!