(informal) A member of security personnel employed by bars, nightclubs, etc to maintain order and deal with patrons who cause trouble.

plural of bouncer

Any of various devices in which a baby may be secured whilst allowing it to move the device up and down, or from side to side.

plural of baby bouncer

plural of shop-bouncer

(UK, slang, obsolete) A shoplifter.

(rare) Befitting or characteristic of a bouncer (security personnel).