Having to do with currency. Attraction to dolla dolla bills y'all.. Getting sexually aroused when you see currency stamped with old dates and double dyed mint marks .. Someone who always checks the dates on everyone's coins and swear they found the rare one worth millions but they did not..
Greg can't keepBeth outta the change jar now that she thinks she's a numismatist.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.