Mental Retard, or used as mentally retarded. I.E. There is no plural
Shut up you tar-tar
Look at the tar-tar bus
by Harvey Owens April 28, 2003
Top Definition
Synonym for retarded or if you're PC, special needs, mentally challenged, etc.
I have to go work with the tar tars as part of my community service.
by J969 February 10, 2005
1. (n.) a yellow residue that is left behind on teeth as a result of over-consuming large amounts of pure alcohol, and not brushing your teeth. hill billy

2. (adj.) savage, uncivilized, barbarian, whorish, not having any moral boundaries, untalented, drunk
1. Guy #1: Dude, I was making out with that girl last night, but I didn't want her to go down on me cause she had lots of tartar on her teeth.
Guy #2: Yea, sure, THAT'S why you didn't get laid.

2. Reporter on TV: ...and the dog walked itself home. Coming up next, "Teens-Turned-Tartar."
Guy watching TV at home: "Hey honey, come watch, they're about to interview Miley Cyrus!!"
by hehehello888 January 24, 2010
Take a tartar, a dump, a crap.
My friend always used this term, for more than 20 years. His Irish family used the term. It's one of those that when you hear it used, you know exactly what it means. I never thought to ask where he got it. Maybe from Steak Tartare?
by jaBo December 08, 2013
a rather large and masculine woman who wears slutty clothes usually reserved for attractive smaller women and possesses a very large penis despite claiming "her" femininity.
Your sister is a tar tar.
by s money July 29, 2004
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