1 definition by Chac Culling

The highest from of promise a man can make. If a man breaks a testicle oath, another person is allowed to punch him as hard as they can in the testicles. Testicle oaths must be used with caution, but they are a sure-fire way to know if another man is telling the truth.
Patrick : "Hey man did you eat my underwear?"
Josh : "No way of course I didn't."
Patrick : "Testicle Oath?"
Josh : "Testicle Oath."
by Chac Culling March 23, 2023
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