[1] : The Collaborative International Dictionary of English v.0.48

bollock \bollock\ n.
   one of the two male reproductive glands; a testis; -- usually
   spelled ballock, and usually used in the plural.

   syn: gonad, testicle, ball, nut, egg.
        wordnet 1.5 +pjc

   2. a pulley-block at the head of a topmast.

   syn: bullock block.
        wordnet 1.5
see also:
ballock 

[2] : WordNet (r) 2.0

ballock
     n : one of the two male reproductive glands that produce
         spermatozoa and secrete androgens; "she kicked him in the
         balls and got away" syn: testis, testicle, orchis,
          ball, bollock, nut, egg
see also:
testis testicle orchis ball bollock nut 
egg 

Ballock >> B Words
Ballock, definition of term: Ballock
ballock_pag1.html