1) When you go all the way in, all the way up to your balls.

Can also mean

2) in a lot of trouble/peril , in a lot of danger.

One ball deep, a moment in hardcore intercourse where your scrotum/ballsack/magicfloaty bits become hard like a rhinos skin an the smaller testicle slides in the gash of glory...

Balls deep means when ur so deep into the pussy that ur balls are in it.

When you are inside a girls vagina balls deep

Go crazy in december is all im sayin🤷🏾 ♂️

A group of gay boys and one vagina that try and manage fantasy football teams. They tend to whine a lot. All 11 gay boys work for really bad companies. The commissioner is about as funny as Jay Leno, but tries hard to make the other gay boys giggle with jokes.

when you're fucking a female with a smelly vagina