In Michael Wolff's book, "Fire & Fury," the author misquotes Steve Bannon as saying "Jumo" when he was trying to say "Jamoke," a dismissive early 20th century insult.
An offensive slur meant to be derogatory that is used universally to insult any person/s regardless their gender, race, nationality, etc. or be used as a substitute for any more specific slur allowing offender to intentionally disrespects someone while still not technically using an agreed-upon rude statement.
Anyone who would go to that place are nothing but a bunch of jumo
Jumo-is the Act of Jacking off well experiencing the munchies, Jacking off being "sexually pleasuring yourself either with your hands or a foreign object"and the munchies "being when you get hungry after smoking weed. Usually people will eat a lot of junk food."