lock up

imprison, put in jail

Lock up can refer to:Lock-up provision, a corporate finance termLock up period, a term concerning initial public offerings of stockLock Up (US band), an American rock band, featuring guitarist Tom Morello during his pre-Rage Against the Machine career.Lock Up (UK band), a UK grindcore band. Lock Up (film), a 1989 movie featuring Sylvester Stallone.Lock-Up (comics), a character from the Batman comics.Lock-Up (TV series), a TV series from 1959.Lockup (TV show), a prison documentary series on MSNBC.Lock-Up, a room in an Indian Police station used to hold prisoners till they are produced before a magistrate.Village lock-up, a small prison used to detain people temporarily.Budget lockup-up, a media relations technique in which reporters are held in isolation during government budget announcements.
See more at Wikipedia.org...

Verb
1. secure by locking; "lock up the house before you go on vacation"
(hypernym) fasten, fix, secure
(derivation) locking, lockup
2. place in a place where something cannot be removed or someone cannot escape; "The parents locked her daughter up for the weekend"; "She locked her jewels in the safe"
(synonym) lock in, lock away, lock, put away, shut up, shut away
(hypernym) confine
(derivation) locking, lockup

to be assured of success The candidate has already locked up the nomination to be a candidate for president in the next election.

To "lock up" a seat in a cash game means to place a poker chip, player's card, or other personal effect on the table in front of the seat, to signify that the seat is occupied even though the player may not be present.