Dictionary definition · chap
noun
- a boy or man"that chap is your host"
- a long narrow depression in a surface
- a crack in a lip caused usually by cold
- (usually in the plural) leather leggings without a seat; joined by a belt; often have flared outer flaps; worn over trousers by cowboys to protect their legs
verb
- crack due to dehydration"My lips chap in this dry weather"
Source: Open English WordNet (CC BY 4.0).