To hang out with your bro's for an extended length of time (i.e., marinade is to meat as brominate is to bro's).
What are your plans for Saturday, bro?
-I'm probably just gonna brominate at the pad with my bro's.
To chill with bro's for an extended period of time. Bro is to brominate as meat is to marinate.
"Yo, what are you doin' after water polo practice?"
-"Me and Shibs are probably gonna chill out on a bowl and brominate, dude."