to hate the cliche "busy mum"?

[MaureenCognito]

where are all the women who describe themselves as "bone idle sods who happen to have some kids in a cupboard somewhere"?

Well, "#BusyMumFact" is a common put-down on Twitter when someone posts an opinion (usually a biased right-wing and spectacularly ignorant opinion) on there. Implying that the archetypal "busy mum" has no spare time to actually find out anything about the topic she's writing about and she's just "shooting from the lip". It parodies the over-developed sense of martyrdom that some mums have, so it's accurate in that respect, I suppose.