A slang word in the pornographic and fetish industry that is a synonym to "Cleveland Steamer", by definition, it is when someone of the same gender rubs feces on the head of a man's penis, hence the name "Tar" + "Bell", "bell" being the head of the penis since it is shaped like a bell and "tar" represented by the feces (similar to being tarred and feathered). The man will then ejaculate and mix in his semen with the feces.
Greg: "Oooh Brian!!!! Stick in in my ass! Oh YES!!! I'm gonna... I'm gonna poop! *poops on Brian's dick head) That was soooo hawt Brian!"
Brian: I love the way you Tarbell! I'm gonna cum! Aggggghhhhhhhh!!!!
Tarbells are usually spanish teachers who are about 3 1/2 feet tall and usually wear six inch high heels to make up for their vertical challenges. They usually wear large hip belts and fashionable glasses. When provoked they often yell in spanish at very rapid speeds. They are also amazed at the internet.
1. dude numero uno: Did you have a fight with your friend, Jon.
dude numero dos: yeah, and he pulled a Tarbell on me!
2. Tarbells are awesome and magical in every sense.