Gainer (noun)- acrobatic trick of performing a backwards somersault while still moving forward
Dogs are barking (idiom)- feet are hurting
Varicose vein (noun)- an abnormal swelling and tortuosity especially of a superficial vein of the legs, usually used in plural
Talking about Middlebury the other day, I remembered that I had a multivariable calculus professor who loved to wear shorts and had the nastiest varicose veins on one of his calves. I would often stare at them and picture how the blood would splatter if the veins had burst.