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2.
1) Verbal abuse used during competition to upset the opposition.

2) To verbally abuse the opponent during competition.
1) He hit me with a lot of trash-talk in the basketball game.

2) He trash-talked me throughout the basketball game.
by Rodney Basil May 23, 2004
 
1.
In the course of a competitive situation putting down your opponent verbally or saying how good you think you are. Oftenly involving talk of moms or sisters.
Examples of Trash Talk
"You couldn't tackle me in a phone booth"

"You better stay out of the paint or I'll block you so hard I'll make your momma hurt more than I made your sister hurt last night"

"I'm so fast you couldn't see me with a telescope"
by eberk December 06, 2007
 
3.
A very horrible sounding hardcore punk band that people listen to only because OFWGKTA (Odd Future) supports their music.
I used to hate Trash Talk, but then I found out Tyler The Creator listens to their music so now I love their shitty music!
by ELCUCUY October 08, 2012
 
4.
It's when you discuss trash.
Finn: Do you know what trash talk is?
Rory: Is that when you discuss trash?
by JoJo Lawrence January 15, 2012
 
5.
The further belittling of an old, crippled, senile, arthritic, putrid, and futile podcast producer.
(trash talk) Jay, I am going to beat you blindfolded.
by Derrek Zarrabi March 12, 2008