When you just don't care anymore. Made popular by Future's Song "Mask off" Where it is used to show that he doesn't care if people see him doing criminal activities so he doesn't wear a mask.
I wasn't gonna tell Jenny that I liked her but she's moving soon so, fuck it, mask off.
by DClark1 March 29, 2017
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Mask off is a term derived from 'The Mask of Sanity: An Attempt to Clarify Some Issues About the So-Called Psychopathic Personality', a book written by American psychiatrist Hervey M. Cleckley.

A psychopath, by clinical definition, is someone born without the ability to experience genuine human emotions. In order to receive acceptance from society, the psychopath, from a very young age learns to expertly mimic the emotions of a normally functioning person. This is referred to as the ability to 'mask' or disguise the fundamental lack of internal personality structure.

'Mask off' refers to the periods of time where the psychopath drops this false façade, which normally results in repeatedly purposeful destructive behavior, often more self-destructive than destructive to others.
I can't believe Marks behavior last night, he really had his mask off.
by thefreshest August 17, 2017
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In future’s 2017 hit mask off, every time he says mask off he means jack off
by Kidswillbekids April 14, 2020
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1. The biggest hit by rapper Future, anchored by a strong flute and a dank-ass hook.
2. When you come clean about something you don't care about.
1. Percocet
Molly percocet
Molly percocet
Rep the set
Gotta rep the set
Chase a check
Never chase a bitch
Mask on, fuck it, mask off
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When u quit playin and be 100 wit people
I'm tired of acting all polite with these po pos, fuck it next time I get pulled over they gonna see the real me G, mask off.
by Buhbuhboss July 07, 2017
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represent, gotta represent, mask off, mask off
by beez225 February 17, 2017
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