Condition in which males are hit in the balls so much that they lose feeling in that area, so they are no effected by being hit there.
Damn! That guy didn't even flinch! He has balls of steel!
by Colonel_Cheesemonkey October 3, 2006
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The ablility to fight somone by dragging your balls across thier face repeatedly.
by shinymantle July 9, 2014
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This is a joke that claims that a males balls are as strong as steel; usually making fun of superman's iconic descriptor "Man Of Steel".
"Im going to ask Brody out today."

"Shit you got Balls Of Steel"
by Pcdop September 25, 2022
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