a non-word. It arose from media haze in 1989, during the "Central
Park Jogger"
case. It supposedly means marauding in search of ultra-violence, but the media made it sound like it was already urban
slang, when it was not. The word did not exist till the jogger thing.
ANYWAY, the youths who were supposedly "wilding" were all innocent anyway. The whole thing really stank, big time.