A phrase Korean rap god Min Yoongi/Suga/agust D in popular South Korean boy band, BTS used in a free style rap.
Fangirl #1:omggg did you see min Suga genius jjangjjang man boongboong perform on stage yesterday?
Fangirl#2: Yes he was amazing!
Fangirl#2: Yes he was amazing!
by Bts fangirl #1 March 29, 2017
Get the min suga genius jjangjjang man boongboongmug. 
An individual who meticulously inspects Facebook (and/or other social media platforms) to collect vulnerable information about a person/people. The information is then collated and shared among a group of friends in order to find ways in which to subtly manipulate the objective.
What is going on? I feel like the people around me are zeroing in on specific details about me and dropping subs.
Oh, you’ve gotta find the Facebook Genius in the group and figure out what they’re trying to get at.
Oh, you’ve gotta find the Facebook Genius in the group and figure out what they’re trying to get at.
by D.M. Willie Quinn January 30, 2019
Get the Facebook Geniusmug. by Slightly chubby August 12, 2022
Get the Blackhole of Geniusmug. 
by Gucci3682 October 12, 2020
Get the Geniusmug. A Joke Genius is someone who thinks they are making a clever joke, when really everyone was already thinking it.
Guy: Hey man! Nick, you're haircut is super lame.
Nick: Like your girlfriends face!?
Everyone Else: dude you're a joke genius
Nick: Like your girlfriends face!?
Everyone Else: dude you're a joke genius
by aoihdoaidhdo; August 26, 2020
Get the Joke Geniusmug.