A sarcastic way of asking someone about the mood they're in. Was coined in the 1988 teen drama, Heathers.
From Heathers (1988):
Heather Chandler: What's your damage? Brad says you're being a real *kuse*.
Veronic Sawyer: Heather, I feel really sick, like I'm gonna throw up, so can we please jam now?
Precedes or follows either a gratuitously disrespectful or honest remark, originated in New York City. Used in similar fashion to "no offense" or "to be honest," interchangeably.
Ya mans is wild buns, respectfully. Respectfully he's washed.
After school, The Modells on Jamaica Ave was active. Respectfully.