On the science fiction tv series "Alien Nation", "tert" is the derogative slang term that the Newcomer aliens (The Tenctonese) use for humans. Just as the humans call Newcomers "Slags", disaffected Tenctonese youth can be heard referring to humans as "Terts".
The Terts will never accept us Tenctonese.
by Ricimer October 22, 2005
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The word means stupid or dumb, but can only be used against people named Terry in a losing argument.
Terry: Dude you're stupid, Nintendo is way better than Sony.
Joe: Shut up Tert.
Terry: *Visible confusion*
Joe: Yeah thats what I thought, loser.
by TerryThe1st June 19, 2020
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Used as an insult to mean a tramp or retard. If somebody is stupid then they are a "tert".
You tert!
Kieran is a tert.
by makit January 13, 2004
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when a cockroach takes its last shit on earth.
Jerry the cockroach was squished to death, thus terting.
by chuchupanda February 11, 2009
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tits, breasts, gazongas, hooters, boobs, funbags, etc
Damn, that girl has some sexy terts.

TERTS OR GTFO!

Show terts, plz
by Larry Flynt September 16, 2009
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Tert is an action of randomized, public sexual affection. When tert is only said once by a person, it is rape. But if the victim or other person replies "Tert" Back, it agrees to mutual sexual relations. But if the victim just says yes, He/She is accepting the public rape.
Joe:"TERT!" Susan: "HuhWhat?"
Joe:"TERT!!!" Susan:"TERT!"
Joe:"TERT!!" Susan:"OKAY!"
by DeadyKyoufu January 8, 2011
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