MILFs that travel in packs. Plural of the word MILF
Most likely the mom who is just a little bit too cool for her children's comfort. The type of mom who would loan her daughter a G-string and massage oil. The mom who sings "Baby got back" at karaoke while booty shaking to the beat. She knows all the words to "Maneater" by Hall and Oates, and one look at her tells you she is one. The type of mom who upon meeting her goes right into your spankbank whether you are dating her daughter or not.
That whole carpool racket is run by the Milfia.