A word that has gained steady popularity in Copenhagen which describes something crazy, wild, festive in the context of social gatherings. If used outside said function, the word serves as a negative connotation.
(An example of the word in the context of social gatherings)
Simon: "Let's go out and get mongobongo!"
John: "Great idea, I'll invite the cyclist as well!"
(An example of the word as a negative connotation outside social gatherings)
Mathias: "Wow, this coffee is mongobongo!"
Sebastian: "You think? I think it tastes perfectly"
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi