Top Definition
The act of inserting your scrotum and testicles into the vagina while being ‘balls deep.’ A successful attempt will result in discomfort for both parties followed sharply by expulsion of the testis from the vagina, which resembles a bullfrog crawling out of the mud.
Tina was so loose that I was able to pull of the Minneapolis Bullfrog without a hitch.
by Sailor Thad April 26, 2007
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