As a side note, just think a moment: do you think it's nice and appropriate to make all these jokes about mother-in-laws?
They're not human? They have no feelings? They don't get offended?
I actually respect my mother-in-law very much.
Just think about it.
So as the joke goes, the mother of the kallah comes over to the badchan after the mitzvah tantz and starts telling him how insulted she is and how it's not nice to make fun of her. So the badchan tells her No! I wasn't talking about you, I was talking about
your Shvigger...