Cougar- The older woman at the bar who is really gussied up and
on the prowl for a man, preferably a younger one. Her kids are
probably at home wondering why it's taking two hours to get
a pack of smokes.
Origin- I guess this is a canadian term. I am not at all familiar with it, but
it is pretty damn funny.
Usage- "Dude, what's up with that lady that was hitting on you over by the VP
machine?"
"She's a total cougar, dude."
"Major coug."
"Take a look around, dude. This place is cougsville."
from:
http://www.slyrecords.com/slang.week22.html