The female analog to morning wood. When a woman wakes up horny and with an erect clitoris. Usually results in the morning rape of her significant other, or some random passer-by.
by alfalfa31 November 22, 2015
Friend 1: The GF woke me up today by straddling my face.
Friend 2: She must have had a bad case of morning marble
Friend 2: She must have had a bad case of morning marble
by alfalfa31 December 12, 2015