A state that is reached when one has run out of options. Usually takes place in a social situation when you cannot play possum and are forced to talk to somebody you do not want to speak to. Usually makes the victim appear as a "mannequin" in a completely frozen position.
Psycho Chico/a: Why was it when I went in to kiss you, you froze?
Normal Person: It's a defense mechanism, when I can't feign sleep or death I go into mannequin mode.
Normal Person: It's a defense mechanism, when I can't feign sleep or death I go into mannequin mode.
by Davey December 4, 2004

Apparently the latest trend. If you thought 2016 couldn't get any worse, well here you are. It's basically an act of standing still with a group of people while a person films the whole thing. Later on they upload it with music to the Internet. What you're supposed to accomplish with it, I have no idea about that but if the intention is to look like a complete dumbfuck then you're doing it just right.
by Catastrophe93 December 3, 2016

A side project of Andrew McMahon that is actually written with out the apostrophe, just Jacks Mannequin
by BreeM. December 28, 2005

Person 1: I was at walmart the other day.
Person 2: and?
Person 1: I saw a mannequin in yoga pants, went home after and had a mannequin wank.
Person 2: and?
Person 1: I saw a mannequin in yoga pants, went home after and had a mannequin wank.
by Squidissued October 19, 2019

by Kerosene July 26, 2008

a challenge where you have people stand completely still while one person films the whole room walking around. When this is posted on the internet, it is put with music. (preferably Black Beatles)
by lxciana November 21, 2016

the act of putting shit on a unconscious naked girl's ass so when she wakes up it looks like she shit herself.
hey bob! I went to this party the other night and gave a girl a dirty mannequin. Needless to say her undies will never be clean again!
by twatiana August 23, 2009
