1: To add a virtual brick on a friend's bebo profile, saying Slag? along with your name, in order to portray your affection for that person.

2: To add a virtual brick on a friend's bebo profile, saying Slag? along with your name, in order to portray your disgust for that person.

3: A slag scout will write the word slag on the brick of a slag's house, so that a slag hunter can then identify the house of the slag, and then go and hunt the slag.
"Ha ha, you slagbricked me, that's cool."

"Uurgh, you slagbricked me, you slag."

Apprentice Slag Hunter: "That house has a slagbrick on it. We better move."
Master Slag Hunter: "Right, you strap this bomb under your shirt, knock on the door and look drunk."
by Epic Shadow May 14, 2009
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