|Schooner on the horizon in the Keys.|
adjectivelegitimate, honest, and open : certain transactions were not totally aboveboard.adverblegitimately, honestly, and openly : the accountants acted completely aboveboard.
On a boat, anything that's on deck or in plain view is 'above board.'
footloose |ˈfoŏtˌloōs|adjectiveable to travel freely and do as one pleases due to a lack of responsibilities or commitments
Thank you, Kevin Bacon.
On a boat, the 'foot' is the bottom of the sail, and if it is not secured, it is 'footloose,' dancing randomly in the wind, also called 'loose-footed.'