lock up
v//ˌlɒk ˈʌp//bura in, låsa in, frysa
(transitive) To imprison or incarcerate (someone).
(transitive) To put (something) away in a locked location for safekeeping; (occasionally, chiefly humorously) to sequester (a person) in a similar way.
(transitive, computing) To cause (a program) to cease responding or to freeze.