(transitive) To endure despite feeling terror, fear, apprehension, anxiety, discomfort, or torment.

(slang) A punch to the face, especially to the mouth.

(derogatory) Holding beliefs or having attitudes that are primitive or uncivilised.

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

Alternative spelling of fuck-knuckle

An extremely exciting ride at an amusement park, etc., where one's hands grip on so tightly that the knuckles appear white. / (figuratively) Any extremely exciting or nerve-racking experience.

Alternative spelling of white-knuckle ride

(Britain, informal) Risqué, sexual, suggestive of impropriety.

(idiomatic, often derogatory) A large, strong, and rather dimwitted person.

plural of knuckledragger