Top Definition
Accidental buttfuck means that you bent down innocently but accidentally in front of someone and their dick touches your butt.
Girl- "Oh I dropped my phone"
Boy- Walks forward while the girl picks up her phone. "Well she just got an accidental buttfuck"

I guess that's what it means. That might be completely false but whatevvs man.
by 420 LEM April 14, 2014

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.

×