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when a female smiles opening her mouth in the shape of a doughnut this allows male partner/partners to insert there genitalia/ junk inside the mouth commencing with oral sex
you look at that beautiful girl and say babe can you imitate a doughnut looks at you opens her mouth then bang shove your junk in that doughnut. ex the doughnutsmile
by doughnut face October 31, 2011
giving head. blowjob.
Why don't you give that man your best doughnut smile.
by betsie April 05, 2008