To be arrested or jumped. Any thing that may hold you up. An inconvenience may be refered to as a Hem Up.
Also to fix the hemline on the
bottom of a dress or pair of
pants. Shortenting a dress or pair of
pants.
"Man, I got hemmed up last night, and pigs took the
sack I just got!"
"These suckas hemmed me up and
jacked my wallet and gold chain."
"Sorry I couldn't make it last night, I got all hemmed up at
work, and didnt get out of there till midnight."