so very sorry @Staff, @Tetrarch42.
I flagged instead of Quote, by mistake, hope i am forgiven.
point was, that you think he is saying, Kermit, and I dont believe so, being very fond of the Strong London accent, and its remarkable difference to other UK dialects, I think still that it is Kalman, or Cowman.
In London, "Muppet" is widely used to describe idiot, in response to many different situations, where a polite approach is required, none of these would involve a frog, though true to say, It did become more popular about the same time as the show was aired over here in the uk.
I am more tempted to think this may be a jibe between dev team at one particular staff member, but what do I know. I dont know any Dev Team Names.