tray farmer Share definition Flag someone who looks for cigarettes or roaches in the ashtray. extreme tray farmers may roll their own smokes made from cigarette butts. aka snipe hunter me: "let me bum a smoke"brent: "we smoked em all. go find some butts."me: "tray farmer" tray farmer by dubious1 December 31, 2011 Get the tray farmer mug.