The definition of an insomniac means no rest... therefore an anal insomniac is someone who's ass never gets a rest. (tons of anal sex...nonstop!) such as a homosexual man whore
Nate was such an anal insomniac that he got his sweet ass pounded by about twenty different guys a day...until the poor chap got genital ass herpes. Then his poor ass hole ozzed with shit and was forced into early hibernation.
by kaylee anna allbee February 14, 2009