A gay man. / Term of abuse.

present participle of knob

A pattern of knobs or lumps. / (UK, vulgar, slang) A session of penetrative sexual intercourse.

simple past tense and past participle of knob

Having a knob or knobs.

Alternative form of knob jockey

(rhetorical question) Implies that a statement is based on a guess or assumption rather than on knowledge or evidence.

In a piece of lumber, a void left by a knot in the wood; such holes are often convenient for peering through when they occur in fences. / (Cincinnati, sports, attributive) Youth league baseball.

(archaic) Someone who makes wigs.

(idiomatic) Indicates agreement, approval, encouragement.