in his/her bag
Crazy. Doing something stupid. In Philly terms, "Drawn" or "Drawlin". Actin a fool. In NYC terms, "Wildin Out".
Shorty's in her bag right now wearing leather leg-ins and boots in the summertime. He or She is in his/her bag right now thinkin they can keep goin around having unprotected sex and not catch something.