when someone's teeth pieces look like they been brushed daily with land of lakes extra thick and creamy for 10+ years...
damn dude, might as well butter ya bagel with that butter tooth
by yaes December 15, 2010
noun - a person that has let their dental hygiene slip into a downward spiral creating yellowing of the enamel.
'oh, you're talking about butter tooth, the they guy that can't stop smoking'
by HM December 17, 2003
a nasty, yellow, fuck up tooth in Jeff's nasty ass grill.
Jeff's butter tooth is so fucked up, he cut his mom's pussy with it last night.
by MadCow July 20, 2004