Obsessed or attuned to a particular thing, idea, or person to an unseemly degree. Always used in the pejorative.

Seems to have originated in the Mid-Atlantic region (probably Southeast D.C.).

to insult the reputation or quality of something or someone.

Often used in the rhetorical formulation, "How you wanna carry?" which expresses confidence that the thing/person can't be insulted.

Probably originated in Southeast D.C.