|Origin:||Perhaps from Latin mappa 'cloth (for cleaning)'|
a thing used for washing floors, consisting of a long stick with threads of thick string or a piece of sponge fastened to one end:
a mop and bucket
a thing used for cleaning dishes, consisting of a short stick with a piece of sponge fastened to one end
3 [usually singular] informalHBH
a large amount of thick, often untidy hair
He ran a hand through his mop of fair hair.