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The act of dangling one's testicles within close quarters of another peer's face while they sleep. It is important for the individual to not wake the victim.

(Also known as part of the inferior cerebral cortex, just superior to the diencephalon, in the dull biological world.)
That fucker Brandon fell asleep with his shoes on last night, so I basal ganglianed that nigga.
by Sean "Droke" Hirst February 09, 2006
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