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a girl, or (homosexual) man who wants to give a man head (aka blow job) very badly, then is a beaver (uses teeth when giving head; very bad).
John: "hey did she end up giving you head last night?"

Steve: "yea."

John: "was she good?"

Steve: "hell no. She was an Eager McBeaver."
by VolcomStoneLC May 06, 2007
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