Gulleybombing

Using Youtube's broken account signup system to flood a live stream with un-deletable comments. Instead of bothering with typing a comment, which moderators can remove, you create hundreds of new accounts with troll messages as the NAME, which cannot be deleted by mods.

I just completely Gulleybombed Mersh's Nightwave stream with names like "MERSH CAN'T PAY HIS POWER BILL." He freaked out more than when we were gulleybombing Tom Gulley!