/hang"up'/ , n. Slang.
1. a preoccupation, fixation, or psychological block; complex: His hang-up is trying to outdo his brother.
2. a source of annoying difficulty or burden; impediment; snag: The most serious hang-up the project has is a shortage of funds.
3. a fixture, object, or decoration that can be affixed to a wall, ceiling, other objects, etc.: He brightened up the room with flower baskets and other hang-ups.
Also, hangup .
[ 1955-60; n. use of v. phrase hang up ]