A Bouncer

1. (informal) A member of security personnel employed by bars, nightclubs, etc to maintain order and deal with patrons who cause trouble. Synonyms: doorman, chucker-out
2. (cricket) A short-pitched ball that bounces up towards, or above the height of the batsman’s head.Synonym: bumper
3. (Internet) An account or server (as with IRC and FTP) that invisibly redirects requests to another, used for anonymity or vanity.Synonym: BNC
4. (dated) One who bounces; a large, heavy person who makes much noise in moving.
5. (slang, archaic) A boaster; a bully.
6. (slang, archaic) A bold lie.
7. (slang, archaic) A liar.(Can we find and add a quotation of Marryat to this entry?)
8. Something big; a good stout example of the kind.
9. A bouncy castle.
10. A kind of seat mounted in a framework in which a baby can bounce up and down.