the effect of a random song playing in your head for no reason, often followed by another song completely unrelated to the first, much like a jukebox on random
Guy 1:Why the hell was Rick Astley just playing in my head? I haven't heard any of his songs for ages! I had Slayer playing before that! Wtf!?
Guy 2: Mental jukebox mate
Guy 2: Mental jukebox mate
by TomD4Eva June 12, 2012

by DictatorTuna August 21, 2011

A person who always says out loud any thought that comes into his/her head, usually with hilarious or mortifying results.
Friend: "We were talking about Donna's new husband Dave, and Anita blurted out that she used to sleep with him!"
Me: "Oh my god! That girl is mentally incontinent!"
Me: "Oh my god! That girl is mentally incontinent!"
by Hexfet November 23, 2009

A term to describe how you felt when you saw something that you hated, but had to put up with and/or couldn't mention, usu. because it belongs to a friend.
Used in bitching, can be abbreviated as in (b), for text/shorthand speech.
Note- not for when soemthing ACTUALLY makes you feel sick.
Used in bitching, can be abbreviated as in (b), for text/shorthand speech.
Note- not for when soemthing ACTUALLY makes you feel sick.
' Linda's handbag mad me mentally vomit, but she was wearing it all day.'
(b)Linda's bag-mental vomit!
(b)Linda's bag-mental vomit!
by 118robotrobot November 24, 2007

by Lenny Pepperidge March 4, 2014

Your average dumbass who still uses "faggotry" and "autism" to describe things they hate. Clearly stuck in the past and narrow-minded to new ideas and concepts, even to old ones that work.
Nikolai shows his mental midget behavior as he shows off his obsession with Pokemon, giving shit to some teenager for making their own fan made designs. Clearly having a shit fit over this.
by The Painful Reality May 25, 2020

by Afghan Woman May 17, 2007
