(Australia, vulgar, slang) Excessively

(vulgar, slang, derogatory, Australia, New Zealand, UK) Term of abuse.

Alternative spelling of fuck-knuckle

(vulgar, slang) To actively sexually penetrate someone's mouth; to have vigorous oral sex. / (vulgar, slang) To sexually penetrate someone's eye socket.

(idiomatic, colloquial, vulgar) An expression of anger or frustration.

(vulgar, slang) A person's facial expression during orgasm.

(slang, vulgar) Not quite right mentally: perverted, stupid, or mentally ill.

(transitive, vulgar) to cheat or treat unfairly (to exploit somebody in a way which results in an advantage to oneself, at the cost of the other party gaining a considerable disadvantage)

(idiomatic, vulgar, chiefly in the negative) To care; to give a shit.

In a screwed up or messed up manner; (by extension) under the influence of alcohol or drugs. / (slang) All wrong; mistaken; taken the wrong way