nah he cooked
surprised, impressed
the one-line answer
Surprised admission that someone actually did well, contrary to expectations.
Nah he cooked is when you expected someone to fail but they delivered. You were ready to dismiss the effort and instead had to admit it was impressive.
mainstream
Your coworker might use this word.
01 / in the wild
hear it move.
impressed
nah he cooked. I didn't expect that from him but he actually delivered.
I was surprised because I expected failure but he actually performed well.