Grotty is a 6 letter English word. It's valid Words with friends word worth 10 points.
You can make 58 anagrams from letters in grotty (gortty).
perhaps grot(esque) + -y1, though senses do not correspond; apparently not akin to Examples for grotty
And now, grotty dear, draw a camp-stool, and bring your heels to an anchor. As for afters, forget a grotty gym shower and leaping into your street-clothes: the post-workout is as much fun as the class.