stinker

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

• noun One that stinks.
• noun An irritating, disgusting, or contemptible person.
• noun Something very difficult.
• noun One that is of poor quality or is shoddy.

from The Century Dictionary.

• noun Same as stinkhorn.
• noun One who or that which stinks; a stinkard; a stinkpot.
• noun One of several large petrels, as the giant fulmar, Ossifraga gigantea, which acquire an offensive odor from feeding on blubber or carrion.

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

• noun One who, or that which, stinks.
• noun (Zoöl.) Any one of the several species of large antarctic petrels which feed on blubber and carrion and have an offensive odor, as the giant fulmar.

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

• noun A person who stinks.
• noun slang A contemptible person.
• noun slang Something difficult (e.g. a given puzzle) or unpleasant (e.g. negative review, nasty letter).
• noun slang Something of poor quality.
• noun Any of several species of large Antarctic petrels which feed on blubber and carrion and have an offensive odour, such as the giant fulmar.

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

• noun an artifact (especially an automobile) that is defective or unsatisfactory
• noun a person who is deemed to be despicable or contemptible
• noun anything that gives off an offensive odor (especially a cheap cigar)