Ninja boot Share definition Flag The impression made by a woman's pants in the crotch area. Along the same lines as 'camel toe'. That chick has a sweet ninja boot. Ninja boot by Dr. Gus March 18, 2003 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