Silver cougar

A much older lady who seems the company of younger men. Silver Cougars are octogenarian Cougars.

Betty is a real silver cougar. You should hear her walker click when she's on the prowl.

that's so pope

Intentionally forgoing luxury to hang out with regular folk. The phrase can also be used as a backhanded compliment.

Jason could have upgraded to business class, but he's flying coach instead. That's so pope.

"Did you see Amy's sweater?"
"Yeah, it's so pope"