A fork of Rural Dictionary
The action of applying the palm of one's hand, with varying degrees of force, to the forehead of an apponent/rival/friend/monkey.!"
e.g. Rupert smagged Reggie a good'un, whilst proclaiming "I Smag you, you smag-baggle-de-Boo-bo, with your Smag-Baggley, Butt-Ugly Boyfriend