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A sex act wherein the fully erect penis is inserted into the ear canal, after which the full seminal load is ejaculated into the ear, causing temporary, or in some cases, permanent deafness.
"I totally gave that bop the deafmaker, i wouldn't try talking to her for a couple days."

"Joe, did you give my girl the deafmaker? She doesn't really answer my questions when im standing to the right of her..."
by jdalphamale10 April 28, 2010
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