Slang: An upper decker - When one defecates into the tank of a toilet as a prank, so that until all the poop dissolves, poop water flushes the toilet. A popular facet of "not my house."
by fromdeland October 21, 2009

by mohlerman August 22, 2011

crazy nickname for a crazy perv named frank who is a freaky perv...ahh mr polite turns perverted who hits on girls even when he has a girlfriend..aww poor girls...he cant go single for a day...frank the tank..more like frank the extremely disturbed
dont be fooled by his politeness...he'll touch you and then you will want to burn your clothes and erase your memory
by asdfasdfas May 7, 2004

by taafi April 26, 2020

by Kwestt September 5, 2010

Rhyming Slang...not very good as in W**k
by Tankman983 May 7, 2003

When a creepy guy is watching you, (he doesn’t have to be wearing a tank top) but he has to give off tank top vibes. And have a little dirt on his shirt.
by Savowtruffle July 19, 2021
