by ImWhiteButNotBlack42069 June 1, 2017

by r+t March 21, 2021

The act of skipping either a event, such as school, or work, in order to clear your head, and de-stress from the overwhelming reality of life.
(also known as mental day off)
(also known as mental day off)
Guy #1: Dude, where were you in school today?
Guy #2: Oh, I was taking a mental day off from all that Calculus work.
Guy #1: I feel you, bro, I feel you....
Guy #2: Oh, I was taking a mental day off from all that Calculus work.
Guy #1: I feel you, bro, I feel you....
by crazyjoe30 November 10, 2014

by get it right the first time May 31, 2009

John: Do Celebrity's Have Surnames ?
Like Madonna
Maria: What Do You Think Asshole, Are You Mentally Disorganised Or Something. KMT
Like Madonna
Maria: What Do You Think Asshole, Are You Mentally Disorganised Or Something. KMT
by nadiiYA. April 5, 2009

by ETVentertainment April 5, 2019

When you personally have made a repair to a machine and feel that it works better just because you worked on it. Even if the part of the machine you worked on would not make it work any better.
Jim: "I replaced the heater core in my car, now it seems faster..."
Sam: "I've heard of that before."
Jim: "Seems to run smoother too!?"
Sam: "That's Mental Horsepower!"
Sam: "I've heard of that before."
Jim: "Seems to run smoother too!?"
Sam: "That's Mental Horsepower!"
by MNIGHT August 21, 2009
