to get out of my face, go annoy someone else.
when a grenade is talking and being annoying you give her the *hand/ finger movement* and say "ugh scadaddle"!
by migg247 September 11, 2010
to leave, that's it just to leave. It just means to go away.
"well I think I'm going to scadaddle, I'll see you later"
by Regifter February 11, 2007