Cisco and Barry in “Unfinished Business”

Cisco

You're looking at the world's first inverse mass angular momentum disruptor, but we can just call it a stellar grenade.

Barry

Cool. So this will destroy the black hole?

Cisco

As long as it doesn't get much bigger, this will reverse the hole's mass-collecting properties, causing it to... [sucks air] Implode. Just toss it into the event horizon, hasta la lasagna, don't any on you.