Patterpillar

A patterpillar is a pillar that patters.
A pillar is a column type thing.
A patter is a noise a duck makes when it walks.

"Bob, what is that?"
"I believe it is a Patterpillar"

by Penguinsgalore September 18, 2017

The Catterpillar

When you fuck your girlfriend on her back, while she eats out a chick who's on all fours in doggy style position, while that chick sucks some guy's dick.

Dude, you and your girl totally have to do The Catterpillar with me "and Jennie"

by Viperslayer December 12, 2011