The delicate act of separating the
jaw from a decapitated
head (taking care to keep the tongue in tact) and then proceeding to "fuck" the esophagus; therefore fucking just the
skull.
"I went to the cemetery last week and found an excellent skullfuck!"
"
The best time for a
proper skullfuck is when the hole has been aged for about 15-25 years of age."
"She looks
like premium skullfuck material."