"I'd take that gum out of the keyhole if I were you, Peeves,"
-- Remus Lupin (PA7)
Waddiwasi is the incantation for a spell that shoots a wad of gum out of a keyhole.
References from the canon
- Lupin considers this to be a useful little spell. He used it to remove a wad of gum from a keyhole that Peeves was putting there. The gum then shot up Peeves' nose (PA7).
"vadd" Sw. a soft mass + "vas y" Fr. go there It makes sense because Lupin didn't just make a wad of gum leave that keyhole, but directed it into Peeves' nose. (contributed by Alina)
The "useful spell" that Lupin was showing them was undoubtedly the "wasi" part, in this case with a target word attached, "wad." Again we see how important intention is to magic, since the wad was directed into Peeves' nose by intent with the "go there" part of the spell. In another situation, the spell might be "stolawasi" to send a robe into a student's trunk, but it would only work if the student focused his mind on where he wanted the robe to go.
Tags: Peeves Remembrall