not cut it

not cut it

To not be at a satisfactory or requisite level; to not successfully complete or accomplish a desired or expected result. The underdog gave a brilliant performance in the ring, but he just could not cut it against the returning champion. I have to warn you, Jenkins, your last few reports haven't quite cut it. You're going to need to improve if you want to keep your job here.
See also: cut, not

not cut it

If you say that someone cannot cut it or does not cut it, you mean that they are not talented or ambitious enough to succeed in a particular job. We're in a real mess now Johnny's gone. Lorenzo's been doing the vocals, but he just can't cut it. It's a very tough work environment. If you don't cut it then you're out.
See also: cut, not