(humorous, colloquial) Exclamation of surprise or pleasure, supposedly part of a Northern English dialect.

(games) A children's game in which the two opponents interlock each other's right- or left-handed fingers, each attempting to press and subdue the other's thumb.

(US, intransitive, idiomatic) To hitchhike.

A fairy-tale character who is the size of a person's thumb; the protagonist and hero of the fairy tale The History of Tom Thumb.

An overhand knot.

The European bullhead (“a species of fish, Cottus gobio”).

plural of thumby

(colloquial) Knitted hand or thumb mitts

simple past tense and past participle of thumbnail

present participle of thumbnail