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

(Australia, vulgar, slang) Vicious, aggressive, intimidating. / (Australia, Britain, vulgar, slang) Dissuasively or intimidatingly large; massive.

(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.

an instance of skull-fucking

(vulgar) Drunken. / (vulgar) Injured. / (vulgar) Damaged or poorly manufactured. / (vulgar) Annoying, evil or wrong.

Alternative spelling of skull-fuck

(vulgar, offensive) A term used to express contempt. Usually used after the individual in question is retaliated upon and the user has no sympathy. / (vulgar, offensive, dismissal) Go away, get lost.