nags Share definition Flag Nags means horses this is another word for people who own horses For example I have got to go feed the nagsI have to go muck out the nags meaning horses nags by Birdiee1579 November 20, 2013 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