Personalized Gyminator Rough White Text Youth Long Sleeve T-Shirt. I am the gyminator in rough white text with the letter M in the word gyminator wearing sneakers is a humorous play on the word terminator and a fun gift at back to school, birthdays, holidays and graduation for physical education teachers, trainers and exercise gurus. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)