Green’s Dictionary of Slang

ballocks n.

also bolix, bollix, bollocks, bollox, bollux
[ballock n.]

1. [late 18C+] (also ballyx, bollax) testicles.

2. [late 18C–early 19C] a parson.

3. [late 19C; 1940s+] a mess.

4. [1910s+] (also bollixing) rubbish, nonsense [? developed f. sense 1 on the premise that sermonizing is, de facto, nonsense].

5. [1910s+] (also ballicks) a fool, a general term of abuse; one who is performing or talking ballocks (cf. ballock n. (2)).

6. [1920s+] a person, often used affectionately.

7. [1930s+] (orig. Irish) an unpleasant person; esp. as (right) old bollix.

8. [1980s+] courage, vigour.

9. [1990s+] used as an intensifier in phrs.

10. [1980s+] used as a direct, pej. term of address.

11. constr. with the, something superlative.

12. see dog’s ballocks n.

In compounds

ballocks worker (n.)

[1950s] any overbearingly unpleasant person or circumstance.

In phrases

ballocks in brackets (n.) [visual appearance]

[20C+] a bow-legged man.

big ballocks (n.) (also big balls)

[1950s] a self-important man.

do one’s ballocks (v.) (also do one’s bollocks)

1. [1990s+] to make the utmost effort.

2. to bet heavily; to lose one’s money.

have his brains in his ballocks (v.)

[early 19C] a phr. used to describe a male fool.

have one’s ballocks in the right place (v.)

[20C+] to be deserving of praise, commendation, approval by one’s fellows; can feasibly be used of a woman.

in one’s ballocks (also in one’s arse, ...bollix, ...ring, ...wick, on one’s pratt)

[1920s+] a general intensifier, usu. negating the previous statement.

knock the ballocks out of (v.)

[1990s+] (Irish) to beat severely.

not give a ballocks (v.)

[1990s+] (Irish) not care in any way.

In exclamations

my bollocks! (also my bollix!)

[1990s+] a dismissive excl.