It smells like up dog in here,
What's up dog?
Nuthin dog, what's up with you?
The joke is meant to make someone say what's up dog regardless of how it's brought up for the jokester to come back with "nothing dog, what's up with you?" Everyone laughs and it's a harmless joke. Well, Bobby Bones said it in The Bobby Bones Show studio to one of the other show members and it sparked Lunchbox to bring the joke back up again for some fun joke calls to strangers.
Listen below and give yourself a good laugh for the day!