When a dude gets high and starts chatting sad things and/or playing deep songs. Like the videos on YouTube that show depressing moments in kid shows and add sad music.
James: Why do you hang out with him?
Mike: He a sad nibba
by CommunisticWeeb420 December 29, 2018
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Almost any time in the day when a NIGGA, feels sad. Normally about 12am.
-"Dude, im in SAD NIBBA HOURS, my girlfriend left me" :(
-"Shit thats sad, ACTIVATE SAD NIBBA HOURS".
by MemeBOIiiiiiiii October 16, 2017
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