Balls Deep reffers to having your penis as deep inside of something as possible.....all the way down to the balls. Balls deep can mean any number of places as well...mouth, ass, vagina.
Balls Deep is a term that was coined by my brother Dan and Im proud to say I use it atleast once a day
1) In general, it describes a state of mind where you are trying your best and going all-out.
More specifically, it's a phrase used to describe the extremely hardcore state of mind a player is in when he uses the "All Out Attack" offensive strategy in NHL 2004/2005. It is usually used as a desperation strategy when you're getting your butt kicked by your friends.
tyler was balls deep in that tranny till he busted a nut she then kicked the fuck out of him till he was a bloody mess. tyler then the next day killed his dog and cut off his penis
Putting in extra effort into doing something. Giving a 110% effort into something. Used in marketing to describe a strategy of launching a product or business.