by christine December 15, 2004

A term used by the adult film industry to describe rough or aggressive oral sex the term and its use is credited to the adult film star Jonny toxic in the early 1990's. Descriptions of other origins and or activities are incorrect, the industry also refers to these actions as "forced" or "brutal" oral sex. The term is among the most searched terms in all of the adult film industry.
That chick gave some good oral sex, she let me finish by skull fucking her. This can be used both ways, girls in the industry also use this term when they aggressively ride a males face with their genital areas!!
by Urbanswervin July 12, 2015

A derogatory term used to describe the violent incertion of the penis into the mouth. In most cases the male or female on the giving end makes little movement, while the participent on the giving end thrusts their hips.
by bucky_b May 23, 2008

the act of inserting a penis into an eye socket and unmercifully humping the skull; often results with the eyeball being forced inside the skull and making maraca-like music
by abraham lincoln September 12, 2004

when you fuck your bitch in the mouth or her eye socket really, hard pounding her head with every thrust.
by squid1161 August 12, 2016

The illegal act of drilling a hole into someone's head and then proceeding to flop your love muscle in and out of the cranial hole. It is considered taboo in most cultures but is still legal in Australia, North and South Korea, and Iran. Was widely experimented with back in the 50's but was nixed due to the likely chance of the fornicator injuring or scratching his cum gun. The famous musician Moby is a very large advocator for it and is a key member in the movement to legalize skull fucking, claiming he has devised a way to safely carve a fuck hole out of a head( male or female we all know he likes to bat with both hands) that is instantly smoothed out providing his "Beef Whistle" safe entry into the mushy abyss of the brain.
Excerpt from the book 'The mountains, the west, the skull fuck'
"..... I studied her while she worked in the Garden, she was a classy gal, 5'2 built like a young boy, Daughter of a wealthy Irish man. She would occasionally turn and give me a smile sending my heart into a tizzy. I carefully studied her preciously built jaw bones, and exquisite facial structure, I couldn't help but imagine taking out my custard launcher and plunging it deep into her skull hole......."
-Theodore Roosevelt.
"..... I studied her while she worked in the Garden, she was a classy gal, 5'2 built like a young boy, Daughter of a wealthy Irish man. She would occasionally turn and give me a smile sending my heart into a tizzy. I carefully studied her preciously built jaw bones, and exquisite facial structure, I couldn't help but imagine taking out my custard launcher and plunging it deep into her skull hole......."
-Theodore Roosevelt.
by DomFe January 11, 2012

by shakezilla May 12, 2004
