When 4 dudes from all different races (i.e. Asian, White, Black, Spanish) nut anywhere on a girl, also a different race (i.e. British) at the same time.
Asian Guy: That party was pretty cool last night.
White Guy: Yeah, I really enjoyed the chicken gumbo, and I think she did too.
The sexual act of rapidly smacking your penis against a Hispanic girl's vagina without actually nutting in order to impregnate her. Less than 1% of men can perform this successfully, and those who can are seen as the true disciples of God Almighty.
Guy 1: Hey, Jake, you want to go bowling?
Guy 2: No, man, I have to go to an ultrasound tomorrow because I did a mach 1 taco to Claudia, bro.
Guy 3: Dude, Jake, you're a legend.
Someone is a Chumbus when they are chummy with their friend but behind closed doors they bust a nut on his girlfriend's face.
Want to hang with Mark?
Don't you know? That dude is a Chumbus to you!
stuck in a predicament, of lewd, fellatio-related proportions
What's up, bro?
I need help! I'm bamboozled, it's pretty bad over here...