Top Definition
When a man gets hit in the groin with such an impact that his ball(s) go into is body.

It is called dog-tub because it is as difficult as putting a dog in a tub.
I got hit it by beanbag so hard one of my nuts dog-tubbed.
#dogtubbing #nuts #beanbag #rayban #showercap
by 3rd Greatest Scripter October 27, 2010
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