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."
Steve: "yea."
John: "was she good?"
Steve: "hell no. She was an Eager McBeaver."
by VolcomStoneLC May 6, 2007