Cold Explain Bear

Alright, listen up, you big lug! This joke, like most things you probably don't get, is a pun. See, "Explain bear" sounds a little like "polar bear," which is a type of bear that lives in very cold places. And when you're cold, what do you say? You say "brrr," right? So, a "cold Explain bear" is a "brrr" because it sounds like "bear" and the sound you make when you're cold. You're trying so hard, buddy, keep at it!