A blow job received in the library, the climax of which causes one's back to twist into the shape of an "M" and induces a sleepiness similar to a coma.
Getting Brain In The Library Cause I Love Knowledge
When You Used Your Medulla Oblongata
And Give Me Skulliosis Until I Comatoses
-Kid Cudi "I Poke Her Face"
by jv23 April 24, 2009
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They act of giving head till one is satisfied enough to pass out.
Damn son, that girl gave good skulliosys had me knock the fucked out afterwards.
by Bout it June 21, 2017
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