To be just as good as someone or something else. Often used in the negative to emphasize someone or something's inadequacy. Primarily heard in UK, Australia.

What does a patch on mean?

: to be much less good, appealing, impressive, etc., than (someone or something) The new chairman isn't a patch on his predecessor.

What is a patch job?

A Patch Job is a container with all necessary information to deploy one or several patches to one or more target devices/device groups in a completely automatic way.