The mother of any one or more than one friend that is incredibly hot. The difference between a "milf
" and a Scott's Milf" is that the latter has an inclination to release sexual tension on the friends belonging to her firstborn son.
Student 1: Dude, while you were shooting your air gun, I just had hot, steamy sex with the Scott's Milf if you know what I mean.
Student 2: Bro, that's my mom!