Someone who bails on his friends and screws them over.
Mapes is the biggest fuckin blackballer ever.
by peabag January 17, 2005
Get the blackballer mug.
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
Get the blackball mug.
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
Get the Blackball mug.
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
Get the Blackballing mug.
to vote against, to exclude socially, or to reject someone.
-The children was blackballing from gym because of there behavior.

- The book was blackballing from the contest, because the author cheated and copy someone else work.
by Chardai D. January 10, 2010
Get the blackballing mug.
The act of giving somone blue balls and then dipping their balls in liquid nitrogen until frostbitten
I gave your uncle blackballs, you’re next
by Bubbi_Marce May 20, 2022
Get the Blackballs mug.
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
Get the blackball mug.