lock up

verb15

1. •
   To imprison or incarcerate (someone).
2. •
   To put (something) away in a locked location for safekeeping; (occasionally, chiefly humorously) to sequester (a person) in a similar way.

   • Please lock up all valuables in the safe before leaving.
   • Angus is back in town! Better lock up your daughters, your wife, and your sheep!
3. •
   To close (and often lock) all doors and windows (of a place) securely.
4. •
   To lock (a door, window, etc.).

   • That door still needs to be locked up.
5. •
   To cease responding.

   • When I press this button, the program locks up.
6. •
   To cause (a program) to cease responding or to freeze.

   • If your password contains a particular string of letters, entering it can lock up the login form.
7. •
   To stop moving; to seize.
8. •
   To stop spinning due to excessive braking torque.
9. •
   To lose one's forward momentum; to freeze.
10. •
    To (mistakenly) cause or have one of one's wheels to lock up (stop spinning).
11. •
    (slang) To assure success in or control of (something).

    • He locked up the championship with that move.
12. •
    To invest in something long term.
13. •
    To enter a state of mechanical alignment.

    • You will roll the second tape for about 15 seconds until the tape "locks up" with house sync. — 1994
14. •
    To travel through a flight of locks on a waterway in an uphill direction.
15. •
    (no longer used) To fasten quoins securely with a mallet and a shooting stick.