bugger

from The Century Dictionary.

• noun One guilty of the crime of bestiality: vulgarly used as a general term of contumely, without reference to its meaning.
• noun A collector of bugs or insects; an entomologist.

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

• noun One guilty of buggery or unnatural vice; a sodomite.
• noun Low A wretch; -- sometimes used humorously or in playful disparagement.

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

• noun obsolete A heretic.
• noun Someone who commits buggery; a sodomite.
• noun slang, pejorative, UK, Australia, New Zealand A foolish or worthless person or thing; a despicable person.
• noun slang, UK, Australia, New Zealand A situation that causes dismay.
• noun slang, UK, Australia, New Zealand Someone viewed with affection; a chap.
• noun slang, dated A damn, anything at all.
• noun slang, UK Someone who is very fond of something
• noun slang, USA - West A rough synonym for whippersnapper.
• verb vulgar, UK To sodomize.
• verb slang To break or ruin.
• verb slang, UK, Australia, New Zealand To be surprised.
• verb slang, UK, Australia, New Zealand To feel contempt for some person or thing.
• verb slang, UK, Australia, New Zealand To feel frustration with something, or to consider that something is futile.
• verb slang, UK, Australia, New Zealand To be fatigued.
• interjection slang, UK, Australia, New Zealand, vulgar An expression of annoyance or displeasure.
• interjection slang, US, euphemistic, rare Cutesy expression of very mild annoyance.

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

• verb practice anal sex upon
• noun someone who engages in anal copulation (especially a male who engages in anal copulation with another male)