Definitions
1.nounA small sailboat lacking a bowsprit, of a type found primarily in the Massachusetts area"We sailed our knockabout around Cape Cod."
2.noun(entertainment) A slapstick comedy or comedian.
3.noun(circus) A tumbler.
4.nounClothing suitable for rough use.
5.nounA worker habitually engaged in casual employment.
6.nounA person living in rough, violent conditions.
7.adjectiveBoisterous
8.adjectiveSuitable for rough use."I have a knockabout cello for non-concert gigs."