cash cow Share definition Flag something set up that is guaranteed to bring in loads of money sales tax, speed traps, parking meters...etc. cash cow by kingman May 15, 2004 Words you can keep railfan mug chonk mug chud mug based mug 67 mug slime mug mogging mug chopped mug thot mug glazing mug huzz mug yams mug larp mug unc mug cracked mug simp mug baddie mug bop mug lolcow mug