Time spent or mutual bonding time between two male best friends or very close best friends hence "bro". Can include sports, drinking, vacationing, and sexual activities, such as watching porn together, bro jobs, jerking off, and going after an attractive female together
Henry: Yo bro we gotta make some bro time again, I need it.
Greg: alright man, lets go to your place and get something to eat and watch some porn, and have some of that needed bro bonding time
Landon: “Dude, them seasoned fries from Rally’s be bunkin’ bro, esp when i soak them in yesterdays room temperature ranch and slide em down my biological nutrition receptacle (throat and stomach combination).”
Lyle: “Bro, those BBQ chips I just ate from the cafeteria were bunkin’ AF bro. Jonah Hill told me about his bunkin’ buffet he is about to open in West HollyWoood, I bet all his food is about to be bunkin’!”