To cosnpire to ruin someones reputation untill they become unemployable and people refuse to associate with them.
After he cancelled that concert his manager blackballed him. Now no record company wants to produce his album.
by A ton of pounds December 31, 2005
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In fraternities, to remove a pledge from the chapter.
John didn't listen when the president told him to do his laundry. We're going to blackball him next week after we make him drive all the girls to out party this weekend.
by MacDog60 February 8, 2016
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to let another man down as a man.
kenny blackballed on all his friends by choosing to hang out with his girlfriend, whom he hung out with the day before instead of drink beer and watch the game.
by ryan pittman November 19, 2007
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freeballing so rawly to the point of actual chafing and bruising of the testicular organs
PFrey decided to participate in freeball friday, however, he "rode" it too hard and thus blackballed it.
by MIKAH CHAN October 4, 2005
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the process where someone says things behind someones back to make themselves seem good, then acts all freindly towards taht person when they see them
"that dick keeps playing blackball with you"
by Ben February 17, 2005
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When someone is a pushover, and drag your name through the mud. They can also get you blacklisted from the Hollywood Industry.
Person 1: Yo bro, did you see that Amber Heard V. Johnny Depp Trial.

Person 2: Yeah bro, Amber a real b!tch trying to blackball him.
by Jxrdn May 17, 2022
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Covering the balls (testicle) and genital area in black paint. Also called greasing.

A punishment that railroad staff (Mechanics) used to give to guys that spray paint (graffiti) the trains from the outside.
They are told to drop the cans and strip naked. The genitals are spray painted with their graffiti cans and sometimes grease aswell.
They are kicked in the testicles by the staff and/ or told to kick each other "in the balls" and told to run either naked or with only the shoes on. Could be difficult to run at this point because their testicles are aching.
Guy1: Hear that?! They are blackballing some poor sods.
Guy2: What's that?!
Guy1: Haha Come.

Guy 1: You already black balled me. I'm begging you! Don't kick my balls i have a girlfriend!
Guy 2: Should have been fucking her then instead of giving us work! Do you know how much time it takes to clean this shit! Spread them legs! You had the balls to do this shit, suck it up.
Guy 1: Oooohh! My balls!
Guy 2: Now run, go ice them fuckers!
by DaveDH March 11, 2023
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