Slang term where holes one and two are a girl's mouth and vagina, thus leaving the anus as the third hole.
Tanya came over and I hit a hole in one on the 3hole!
by Kameleon` June 28, 2005
The asshole, balloon knot, bad place
Adam loves to go 3 hole on Jenna and she likes it.
by Not Amac November 09, 2007