Wack a doo

Someone that is crazy or nuts.

Billy's a Wack a doo for painting his hair orange and blue.

by PayDaddyDaPimp May 14, 2005

Wack a doo

This is a phrase used instead of WOW! It is used a lot in the film 'Win a date with Tad Hamilton!'

You walk into a very posh hotel suite and say "Wack a Doo!"

by surfergirl April 26, 2004