Is it Lashon Hara (or any other aveirah) to imitate a rav. It’s a common thing in yeshivos (at least the ones I’ve been involved in) that some bachrim imitate the rebbes mannerisms and way of speaking in a joking manner. For the most part the bachrim who do this have a lot of respect and yirah of the rabbi but enjoy getting a kick out of the way he talks/gives shiur.
Is this type of imitation considered Lashon Hara or is there any way to defend such behavior? please bring source if possible of course