Bollix

n.

Heard in Cork, Clare, Waterford and Dublin

Can be used to refer to the male testes and scrotum collectively. Can also be used as an affectionate term for a male friend, as in If spelt with an 'ox' it can refer to a person with whom one is totally dissatisfied, such as a

In use

g'wan ye bollix." "biased, blind, baldy, bollox of a ref!

Posh English

Do crack on, you delightful scoundrel.

Same phrase, other counties