pecker

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun One that pecks, as a bird's bill.
• noun Vulgar Slang The penis.
• noun Chiefly British Slang Courage; pluck.

from The Century Dictionary.

• noun One who or that which pecks, picks, or hacks; especially, a bird that pecks, as in the compounds nutpecker, oxpecker, woodpecker, flower-pecker.
• noun A picker or pickax.
• noun In weaving, the picker of a loom; the shuttle-driver.
• noun In telegraphy, a relay. Earlier forms of this apparatus pecked like a bird: hence the name.
• noun Courage; spirits; good cheer.

from the GNU version of the Collaborative International Dictionary of English.

• noun One who, or that which, pecks; specif., a bird that pecks holes in trees; a woodpecker.
• noun An instrument for pecking; a pick.
• noun The penis; -- an obscene term for the male sexual organ.
• noun (Zoöl.) See under Flower.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Anything that pecks, such as a bird, or the bill of a bird.
• noun Woodpecker.
• noun slang The penis.
• noun chiefly UK, slang The mouth
• noun chiefly UK Spirits, nerve, courage.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun bird with strong claws and a stiff tail adapted for climbing and a hard chisel-like bill for boring into wood for insects
• noun obscene terms for penis
• noun horny projecting mouth of a bird