Top Definition
fettlin' - meaning to fuck.
- to fuck a boiler (ugly girl).
comes from the steel industry originaly as it means to scrape the slag out of a furnace.
i ended up fettlin' that boiler lastnight. she was nasty.
by funnily conical February 17, 2005

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug