1. A male who must keep one member of a group afloat and with the program much like a tug boat has to keep a barge afloat and going in the correct direction.
2. A male who often must pull along less motivated participants within a circle of friends. They are often loud, humorous, and unrelenting in their passion for having fun and finding shananigans. A Tug boat will not stop untill all necessary participants are aboard with the evenings plans, regardless of how much his friends' girlfriends dig their heels in the mud and say NO!!!
1. Spunk needed to be dragged out sometimes, much like a barge, by the group tug boat.
2. Greg was such a tug boat regardless of how tired Matt, Lauren or Spunk were he always got them to go out and have fun!
When one puts seran wrap on anothers face, poking holes for respiration, and taking a dump on the others face with the seran wrap still on there face. The seran wrap acting as a "Glass Bottom".
Jack performed a glass bottom boat on jon after jon fell asleep.
When you take a dump, wipe your butt, and as you stand up, but before you flush you have one last turd that needs to be squeezed out, and it ends up floating on top of the toilet paper out of the water.