plus fours is a noun meaning "men's baggy knickers hanging below the knees; formerly worn for sports (especially golf)". It carries one recorded sense.
men's baggy knickers hanging below the knees; formerly worn for sports (especially golf)
plural · golf
Definitions, synonyms and semantic relations for plus fours come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.