bollocks

Short definition from Wiktionary

Noun

1. 1
   The testicles (sometimes used in the singular)
2. 2
   Nonsense or information deliberately intended to mislead.
3. 3
   An idiot, an ignorant or disagreeable person.
4. 4
   Ellipsis of the dog's bollocks.

Verb

1. 1
   To break.
2. 2
   (also bollocks up) To fail (a task); to make a mess of.
3. 3
   third-person singular simple present indicative of bollock

Interjection

1. 1
   An expression of anger, frustration, etc.
2. 2
   An expression of incredulity.