When you hard slap someone on one testicle or both. This is a very, very, very hard slap. DO THIS TO SOMEONE WHO DESERVES IT. This can also be done on the girls ass and tit. This will result in a lot of pain.
Why did you use the heftybiff.

Don't use the heftybiff.
by MAKINGfunOFpeeps May 20, 2021
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