Definitions by Desimoto
Murfin
In a sexual context, the act of placing one's mouth on another's belly (or other area of the body) and blowing, thereby creating both a sonorous and pleasing sound and vellicating the recipient, causing them to squirm. Variations on the murfin include a "wet murfin" (incorporating the excretion of saliva onto the recipient during the act of murfing) and the "hairy murfin" (whereby the murfiner grows a mustache and engages in the act of murfing).