This term is used to describe when one is having unlubricated sexual intercourse with their grandmother, but the hard penis is too sturdy for the grandmother’s saggy and dry vagina to handle, thus ripping the walls off of the vagina like paper and the blood pools and fills up the vagina, imitating the water in the Panama Canal.
Person #1: Hey bud, how was your grandmother yesterday?
Person #2: Not too good, I created a Grandama Canal and she had to go the the gynecologist.
Person #2: Not too good, I created a Grandama Canal and she had to go the the gynecologist.
by theguyinwalmart January 7, 2018
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