According to Dave Chappelle, the preferred type of cigarette for black people, but nobody seems to know the reason for this. According to the wikipedia article, a study in 1995 shows that 79% of black smokers prefer menthol cigarettes compared to 13% of white men or 20% of white women.
While receiving a blow job, while taking a bowel movement, the "giver" insertes something into their mouth containing menthol, such as a cough drop, then continues while forcefully humming through there nose.
E-rod, I finally I got that Menthol Humming Blumpkin me and Rat where talking about yesterday! That girl was a real trooper!