During anal sex, the person that is doing the penetrating and thrusting is the one that is doing the "knocking," and the anal opening is, obviously, referred to as the "back door."
by Zeeky H. Bomb March 19, 2005

by Sorta-Understand-the-Definition Guy April 9, 2004

To keep unwanted people out of a safe area so that they are unable to escape the consequences of having made their own area fatally unliveable, with the implication being that to let them in would only be to share their fate.
by greystar69 September 13, 2010

"Were about to blow the doors off this party"
"Hey, wanna come over tonight"
"Yeah, i'm gonna blow your doors off"
"I shouldn't have eaten all those tacos last night dude, I just blew the doors off that toilet"
"We literally Blew the doors off the condo"
"Bro did you hook up with that chick last night?"
"Dude, I blew her fucking doors off"
"Suh"
"Dude Suh"
"Hey, wanna come over tonight"
"Yeah, i'm gonna blow your doors off"
"I shouldn't have eaten all those tacos last night dude, I just blew the doors off that toilet"
"We literally Blew the doors off the condo"
"Bro did you hook up with that chick last night?"
"Dude, I blew her fucking doors off"
"Suh"
"Dude Suh"
by The Original Dirty Goat May 30, 2016

When you're not sure if the girl will do anal so you test the waters by sticking your finger in her butt hole,
by Hawat June 12, 2014

by GeneralEarl October 31, 2009

Usually refers to a cute, unattainable, wholesome girl, who a guy would like to make love to. She's the type of girl you can take home to your mother, but usually is a tiger in bed.
Amy is one of the "girl next door" types. She is just as cute as a pin, so I was completely surprised when she agreed to go out with me, and even more surprised when she was all over me when we got to the park. She blew me (and swallowed) before we even got out of the car, and was tight as a vise when we made love before I took her home.
by BRD September 6, 2005
