Blow Boys Blow. Blow to knock down or out physically Blow regarding "winds to blow" Blow to take a breather or rest after a hard pull (no sexual connotations)Different ships different long splices, should'nt get to immersed in nautical nomenclature mates, theres not much book larning amongst us. I would say Blow boys Blow would mean Bully Hays was beatin us again, but on steamships it would mean rest boys rest. Aye mates it's a hard old time when yer getting yanked out o'ya hammock by Elle just to give singing lessons, Back to me rum mates, Yours, Aye. Dave