1 definition by Sir Tyler

Wee woo is the sound a siren makes. It is used in jest, to make fun of police cars, fire engines, ambulances, anything with a siren, really. Popularized by short films.
Jay: Haha, the principal's about to bust those two stoners!

Andy: wee woo, wee woo, wee woo!
by Sir Tyler April 29, 2006
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