Wow, for a day thats not monday, this sure has been a crummy day so far. I got no sleep last night, my car wouldn't start, that dude on the bus kept touching me, the coffee machine is empty and just...wow...its like an under-cover monday.
by Seedly October 11, 2009

The proper response to someone who request or advises you to do something you have no intention of doing. Synonym: fuck off.
Girl: "You should really apply yourself more at work!"
Guy: "I will take that under advisement."
take under advisement
Guy: "I will take that under advisement."
take under advisement
by w0rdw1z July 8, 2014

This phrase means exactly the same as a fly on the wall -- that is, somebody who covertly watches or listens in on something that is not intended for them to see or hear.
From the Star Trek: The Next Generation episode, "Lower Decks":
"How would you like to be a spider under that table?"
"What?"
"A spider under the table."
"Is that like a fly on the wall?"
"I guess so."
"How would you like to be a spider under that table?"
"What?"
"A spider under the table."
"Is that like a fly on the wall?"
"I guess so."
by Telephony August 29, 2014

not involved in social activities
by emci March 21, 2009

by The Return of Light Joker December 4, 2007

When a girl farts and queefs simultaneously, placing one hand "over" her vagina, and the other hand "under" her legs, on her ass, both in a cup-like position. When said girl farts and queefs, she moves her cupped hands from a closed to open position, thus creating a loud "Over-Under Thunder." This act is common when girls have pajama parties.
Cindy: Uh-oh! I have to fart and queef at the same time! What should I do?
Stacey: You should cut an Over-Under Thunder!
Stacey: You should cut an Over-Under Thunder!
by JasonFatKid November 1, 2012

by slurpee junky February 20, 2010
