n. Dumb mammal. Big idiot.
-Dad, why can't I read? -Because you are a chom.
Type 1 fun is just plain fun. Simple, uncomplicated fun. It differs from 'fun' because it implies that there was a possibility for type 2 fun
or even type 3 fun
to have occurred instead.
a: "So, how was your boss's BBQ?"
b: "Oh, everyone got plastered and played twister. Proper type 1 fun."
a: "See, told you it would be fine."