With the accuracy of a sniper rifle and the disposition of a demigorgon's head, the Phillips Head Buttcrack is two intersecting buttcracks, one vertical and one horizontal, that lines up in the middle of one's ass with a sphincter in the center point of the intersection. The Phillips Head Buttcrack can also be referred to as the crosshair ass and the forbidden four square.
Man 1: Hey have you heard from Bisexual Tony lately?

Man 2: Yea. He introduced me to his boyfriend who promptly told me he had a Phillips Head Buttcrack. Weird right?

Man 1: Well I can't judge. Whatever gets ya going, am I right?
by Jeffgoldblum37 March 11, 2022
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The act of using a twisting motion while giving a blowjob.
She was tasting my tool, then she whipped out some phillip's head and I was screwed!
by StaticCatfish July 25, 2023
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When a lad that is not only just a tool bag, but is a homosexual tool bag that lies within...(the opposite of a Flat head; Flat head being an ultra Straight tool bag...basically just a tool bag...)
Damn, he's such a Phillips head...

He's not only a tool bag- boys a gdam Phillips head...
by Theultimate6Man February 23, 2015
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