look up any word, like ratchet:
 
1.
While a man is having sex with a woman, she farts causing his testicles to swing back and forth; similar to a dog door.
Dude, she gave Tom a doggie door last night.
by Kane October 07, 2004
 
2.
A womens anus
I fucked her in the Doggie Door last night
by Chip King December 31, 2013