Cunningham's Encyclopedia of Magical Herbs - Scott Cunningham 1985

Wahoo
The Herbs

(Euonymus atropurpuraea) Poison

Folk Names: Burning Bush, Indian Arrow Wood, Spindle Tree

Powers: Hex-Breaking, Courage, Success

Magical Uses: Make an infusion of the bark. Let cool. Rub on a hexed person’s forehead (or your own) saying “Wahoo!” seven times. (Some people say you should trace a cross with the infusion.) This will break any hexes cast against the person.

When carried, it brings success in all undertakings and imparts courage.