downstairs brain 

A man's sexual organs, as opposed to his usual so-called-brain, the upstairs brain.

Mike wasn't digging Jen, but three beers later he was thinking with his downstairs brain. Now he has herpes.

downstairs brain by MWazza April 17, 2009

Downstairs Mustache 

pubic hair

Her downstairs mustache was so dirty it had a whole ecosystem living in it.

Downstairs Mustache by gimmiesumgrain August 29, 2010

downstairs tinglies 

when you hear, see or think about something so sexual that your baby-making parts get the tingles. can be cured by eating large amounts of unhealthy foods

Friend 1: Hey did you see last night's Glee episode?
Friend 2: Yea the Unchained Melody performance gave me the downstairs tinglies!
Friend 1: No way, me too!
Friend 2: Shit, lets go get a quesadilla or two!!

downstairs tinglies by Mifi April 8, 2013

Downstairs Nancy 

When you kill your drunken husband by pushing him down the stairs

"Why did you kill your husband you downstairs nancy?!"
"I didnt I was at my sisters!!!"

Downstairs Nancy by IdidntkillhimIwasatmysisters October 23, 2016

downstairs mixup 

a more appropriate way of saying one has a mangina

You've seen my downstairs mixup, you must love me!

downstairs mixup by JillH September 23, 2010

downstairs happy 

To have an erection.

Some women make me downstairs happy.

downstairs happy by madphysicsman May 13, 2004

Downstairs Attic 

A place where people keep weapons

My flamethrower is in my downstairs attic.

Downstairs Attic by Pixiestick518 January 18, 2019