2 definition by Tasty time

Top Definition

The act of burrowing your nose into someones anus durring sexual playtime. A gluteal motor boat. Also known as a "Steam Boat Willy".

We started with the Dutch rudder, then moved on to the Dirty Sanchez, and ended with a lengthy and lively Grundle.

by Tasty time May 21, 2012

To burrow your nose into an anus durring sexaul playtime. Also known as a Grundle.

The key to any good Grundle or steamboat willy is copious amounts of ass sweat.

by Tasty Time May 21, 2012