stick up

verb

1. To rob at gunpoint.

   “I think they intend to stick up the bank.”

   “What Pimp was asking me to do was crazy. Off the fuckin' chain. Insane. He was scheming to stick up T.C. and Miss Lady's pool hall so we could pay off G, but a playa like me was getting ready to go to college and put all that two-bit robbing and stealing shit behind me.”

2. To be prominent; to point upwards.

   “No matter how much I brush it, my hair always sticks up.”

3. To speak or act in defence (of).

   “Don't let them push you around, stick up for yourself.”

4. To defy, to confront, to stand up to.
5. To maintain a commitment (as, to a proposition or role)
6. Used other than figuratively or idiomatically: see stick, up. To put or post up by sticking.

   “Stick up the postcard with a bit of tape.”