his dad was kickin' it boat casual on the back deck by the grill, getting barbecue sauce on that old pair of dockers shorts that he wears whenever he does yardwork
a dressed-down preppy who is still wearing fancy clothes
"his dad was kickin' it boat casual on the back deck by the grill, getting barbecue sauce on that old pair of dockers shorts that he wears whenever he does yardwork" What is the definition of "boat casual"?