(v) To talk trash, insulting or casting doubt on a person's ability.
Before the fight, the boxers were talking smack to each other.
by keyshaw June 24, 2004
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Saying something or insulting someone which will get you smacked in the mouth !
You got bitch slapped cuz you wuz talking smack.
by Martin Bro October 09, 2007
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An arrestable offence in Espanola, NM; one is said to be talking smack when using Mexican expletives in reference to the small-mindedness, arrogance and stupidity of police officers. Punishable by death in some South American and Middle Eastern countries, it is only enforced in the USA in Espanola, NM and Bumfukk, GA.
"Hey ma, come pick me up, this "coolon" (spelling?) is harrasing me". This is an example of talking smack on the phone while an officer of the law is staring you down.
by Office Barbrady September 11, 2006
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To talk the Shizdat
You gonna get jacked up if you keep talkin smsck
I only talk smck wit my hand
by hatabitchsmacka February 05, 2004
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something you would say to someone you are downright pissed off at.
"oi lorna lou , talk smack you get a wack " said sop.mc
by sop.mc April 21, 2016
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The art of telling another person off, belittling them or calling their momma fat, while in the heat of competition.
Man, your mamma so fat she got her own zip code!

You can't play madden dawg cause you broke ass and your plays are weak!

Senator Obama was talking smack about President Bush.
by Spada March 26, 2005
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A variety of threatening language, often used as an implied precursor to physical violence.
"If my brother dated my ex-girlfriend, I'd rub his ass out"

"Oh, believe me, as soon as I'm alone with my brother, there will be some serious ass-rubbing"

"Dude, you shouldn't try smack talk."
by Odiumjunkie March 01, 2005
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