To address someone as dude. / To take a vacation in a dude ranch. / (US) Usually followed by up: to dress up, to wear smart or special clothes.

(idiomatic) A young person who is ugly, but who is expected to become beautiful as they mature.

(of a statement, matter, or thing) Arousing doubt; questionable; open to suspicion. / (of a person) In disbelief; wavering, uncertain, or hesitating in opinion; inclined to doubt; undecided.

A fictional anthropomorphic black duck in the Looney Tunes and Merrie Melodies series of animated cartoons by Warner Bros.

(usually used attributively) A duck, comical especially for lisping voice or zany behavior.

One of the Disney cartoon characters, an anthropomorphic white-feathered duck who usually wears a sailor suit and is known for his voice especially in tantrums. / The asteroid 12410.

(Cockney rhyming slang) A fuck.

A kind of coarse woolen cloth, having a thick nap or frieze. / (US, colloquial) Outfit or supplies, collectively; kit.

(dialectal) Dough. / A stiff flour pudding, often with dried fruit, boiled in a cloth bag, or steamed. / A pudding-style dessert, especially one made with plums.

(Scotland, US) Decaying vegetable matter on the forest floor. / Coal dust, especially that left after screening or combined with other small, unsaleable bits of coal.