Also used as an insult in Harry Potter and the Prisoner of askaban. It comes from the insult "Weasle Louisa, Weasle louisa" and eventually stuck as weasle (the nick-name) Over time however bee was added to weasle to make the word weasle bee. Nick-names and shorthands for weaslebee are: weasiebee, bee, weasle, wee-bee, Louisie-bee and when drawn you draw a weasle, not in detail just a lemar type creature and a little bee next to it. also means crazy and mental, but also cute at the same time
In Descriptive terms, "Your such a weaslebee,"