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Female dominant position resulting in loud coital noises due to intensified orgasms.
Heather's neighbor's could hear her, because she was upstairs.
by Cunning_Stunt December 02, 2009
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Upstairs is an imaginary place that people blurt out when they are too busy to tell you where the item really is.

If someone is clearly doing something and you bother them looking for whatever you want, they would blurt out "upstairs," stoically while continuing what they were doing before you interrupted them.

This proves to be most entertaining in situations where there is only 1 floor, or when there are too many floors to choose from.
Person 1's intern: "Hey, by any chance have you seen where I put my phone charger? I thought I plugged it in somewhere around here."
Person 1 while still busy working on their computer and not looking at the intern: "Upstairs."
by Rahim The Dream March 24, 2010
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Going "upstairs": you deliberately go upstairs to have physical contact with a significant, and or, not so significant other. Say something we're to happen on a couch, no damage because couch activities are never planned. BUT stairs, you physically go up stairs with intentions of physical contact.. And that my friends is no bueno
"You have a girlfriend, you can't go upstairs!"
by SumSum September 20, 2015
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VERB - An upstairs is when you remove the lid from the back of a toilet tank, and proceed to either piss and/or take a dump (the idea method) right into the clean water and put the lid back on. If done right, the turd will float around in the tank and foul water will come out when the toilet is flushed, and also in case of an emergency, the normally potable water in the tank cannot be consumed.
Dave did an upstairs in our bathroom, so thanks to that asshole now we won't have emergency water when the hurricaine hits.
by swilson January 10, 2006
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People superior to you in your organization (where you work).
A: Hey Daniel, I have some issues here, with the Standard Operating Procedures. Look at the sections... eh... in SOP-11A.1.2. If we stick to that, we're gonna waste considerable time, which we don't have.

B: Oh Bob, I know all that bull. But it's way above my pay grade. You'd have to go upstairs to challenge that.
by genome2k March 30, 2011
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