shit got fired up

Similar to situation when shit hits the fan however structurally different. The outcome is not a shower of shit affecting everything nearby as in the first case, but a suddenly relaxed bottleneck behind a large amount of pressurised shit. This does not affect as many objects nearby but few heavily. (exchange "shit" with "issue" or "opportunity")

A: Where's John? Long time no see. B: He's gone. Shit got fired up.