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A scream you hear from within the walls whilst babysitting a creepy child late at night. A not-so-common misuse of "blood curdling."

See: Gnar
"Then after he went to sleep, it sounded like it was in the, like, in the walls, and it was the most...most...blood...blood throttling scream. Ever. It was hella gnar."
by GnarestMFerAlive February 25, 2009
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