average joe

is a peaceable guy if one is sharing a bite or playing cards, but, try to discuss something inedible, such as politics or science, and his obtuseness will leave you at a loss.

While you're playing cards with a regular guy or having a bite to eat with him, he seems a peaceable, good-humoured and not entirely dense person. But just begin a conversation with him about something inedible, politics or science, for instance, and he ends up in a deadend or starts in on such an obtuse and base philosophy that you can only wave your hand and leave. Anton Chekhov

average joe, n.All

average joe