When a female/male is riding their partners face, and on orgasm they defecate on their partner's forehead and flatten it with their ass cheeks.
Marry was riding my face so hard and gave me the largest Michigan Flat Tire that I'm still trying to wash it out of my bangs.
by Delaware Seagull Shake May 17, 2022
when we got home last night, i was so ready to throw him down and hop on top but no such luck--he had a mccurry Alaskan flat tire :( waaaaah..
by DixxieCallahan February 02, 2016