1. The undersized testes of a human male.
"You have babynuts"
"Hey babynuts. Fuck off."
"Last night your mom told me you have babynuts"
"Did you catch the planters advert?"
"Yeah, I love #babynut"
The highlight of Superbowl 54.
"Did you catch the planters ad?"
"It was the best! #babynut"