(v.) (1.) To insult someone. e.g. "Did you hear Kykurass smacking Makeme?" (2.) To taunt an NPC. e.g. "Hey - lay some smack on the mummy - he's tearing me up!" (3.) To attack a target, especially with a spell, or massive attack. e.g. "You smack the orc on the left, I'll get the caster."