Top Definition
A unit of measurment to define the depth of womans genitalia.
'hello adam how you?'
'not bad Rob but i was with a girl last night and she must have been 20 twat fathoms deep, nearly lost my arm..'
by sharpeandharp January 27, 2009
5 Words related to twat fathom

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×