Brunch Coordinates

A couple of friends with kids were visiting for brunch.  Explaining how their 5 year old was trying to define 'bear', they said he did it this way:
"You know a Polar Bear?  It's like that except brown not white.  Also, it's not polar, just regular."
Being comfortably in the presence of fellow nerds, I chime in: "Ah, a Cartesian Bear then?"

No groans and no confusion, just some chuckles and nods of approval.

Before I feel too witty, I googled an image for this post with "cartesian bear" and apparently this is a common thought.

Aww shucks...