blow the grampus verb1 •(slang, no longer used) To throw water on a sleeping person, generally as a practical joke.There was the goggle-eyed daughter a blowing the Grampus with the platter-faced planter, whenever he caulked [slept] upon deck; […] — 1829 formsblew the grampus · blown the grampus · blowing the grampus · blows the grampus
