uncorked

adjective3

1. •
   Having had the cork removed.
2. •
   Not corked; allowing liquid to flow freely.

   • Right before Dozier and the real General Williams's eyes (and optics), Charr's bones snapped and broke painfully as his entire body was sucked into his scar like an uncorked drain. — 2011
3. •
   Allowing exhaust gasses to be released to the atmosphere immediately after exiting the exhaust manifold.

   • With their uncorked engine exhaust snarling, the B-25s zoomed over the twin spires of the impressive white cathedral and strafed several supply dumps alongside the waterfront. — 2013