sponge bag is a noun meaning "a waterproof bag for holding bathrooms items (soap and toothpaste etc.) when you are travelling". It carries one recorded sense.
a waterproof bag for holding bathrooms items (soap and toothpaste etc.) when you are travelling
United Kingdom
Definitions, synonyms and semantic relations for sponge bag come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.