A cross between two similar phonetic spellings of expressions: Whee, a high pitched glee; and Bwahaha, an evil and maniacal laugh. This combination results as a mischievious shout of joy. May be lengthened and/or have "hehe" added to the end of it for emphasis.
"Bweeee!"
"What are you up to this time?"
"Nooooothing."
"Bweehehehehe! I'm ready to own some noobs!"
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