A mom that you don't necessarily find attractive(physically or other) but you would definitely like to fuck them in the ass, if only to cause them some pain and humiliation.
"I don't consider Sarah Palin a Milf but she's definitely a Milfita."
"Fuck that lady with her kids is annoying. Definitely a milfita."
It's an operation began by Vladolf Putler and its goal is to save the innocent washing machines from the persecution of the Ukrainian Nazis. If Russia didn't have an obsession with cleanliness, the special laundry operation would never have happened.
Special military operation is an honest Russian euphemism for a war of aggression.