Grease Monster

An extremely greasy person

Dude 1: Ross, are you eating the grease from the deep fryer and rubbing it on your belly?

Grease Monster: SO WHAT IF I AM!?!

Dude 1: You f*cking grease monster!

Flop Around Fish

A non-erect penis while wearing a condom.

Chick 1: Hey lets have sex
Dude 1: Girl, you so ugly you gave me a flop around fish