look up any word, like ethered:
 
1.
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
 
2.
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