This is the diagram that my two quaid friends and I were discussing at 1369 in Central Square.  You overheard what we were talking about and started laughing.  I feel bad for not showing it to you before we bounced due to our inferior meteorological abilities and dearth of umbrellas.

As you can see in this Venn diagram, there is a sliding scale between pumas and cougars. Cougars and pumas, of course, are both older ladies that enjoy preying on younger men. The most important factor would be the age difference between the bitty and the dude.  If there is a large age difference, she is a cougar. If it is a smaller age difference, she is a puma.  There are too many complicating factors, such as tweed, plastic surgery, divorce status, etc. to predict with any reasonable certainty whether a hypothetical pairing would render a male victim pumaed or cougared.

Milf status is determined only by presence of a child: if puma or cougar and child, then milf.   All successful pumas and cougars with children are milfs.

Hope you found this information useful, person with arrows pointing at her face and her dad who was sitting at the table with her and listening in as well. Feel free to share it via the icons in the footer with any parties who may find it useful: mothers, aunts, lady coworkers, etc. or who otherwise may embarrass themselves by misusing terminology.

However, be advised that all three terms have suffered death by meme.