The act of shoving one's head up the anus of a man. This requires either surgical modification of the sphincter or EXTREME anal training with buttplugs. I honestly cant imagine this being possible, but there's some fuctup people out there and I'm sure its been done by somone.
Tired of rodents and peni, Richard Gere decided to finaly allow Jacko to savagely stretch his ass with a series of huge buttplugs and within a week of teribla anal torture he was ready to be HELMED
, to take the greasy pale head deep in his anus.