The abbreviated verb form of mother fuck. It is most often used as an interjection. Synonyms would be something like dang it or damn it.
M. F.-it! I just freakin' slammed my hand in the m. f.-ing door!
3 Words related to m.f. it

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.

×