stoner /ˈstoʊnɚ/ noun4 •One who stones.At eight you thought of boys as cat drowners and bird stoners. At nine there was another reason for boys' existence: they either noticed you or they didn't, and it desperately mattered which. — 1950 •(slang) A habitual user of cannabis."You're useless when you're high on catnip, you know that?" "Mewww mew?" "No I will NOT put on Dark Side of the Moon and the Wizard of Oz for you. Goddamned stoner cat." — 2006 •[in compounds] Someone or something that weighs a certain number of stones. •A machine to remove the stones (pits) from fruit. formsstoners