ur ma Share definition Flag the northern irish way of saying "yo momma", mostly used by spides in a fight Stevie: aye ur ma Johnny: wa mate? ur ma by i lie pie July 4, 2006 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