The act of doing some thing to a major extreme.
Dude that test was balls real deep.
Dude he landed it, balls real deep dude, no way.
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.
She likes when he goes BMFD: Balls mutha fucking deep nside her and she feels it poke her back.
The other day i got caught in a street brawl and was Balls mutha fucking deep right in the middle of it!
Balls deep means when ur so deep into the pussy that ur balls are in it.
U walk into ur room and u brother is balls deep into ur sister
when you go so far in you gotta squeeze your scrotal package in too
“bro i was balls deep in her (or him) last night”
“wow! did they fit?”
when you go so far your gotta squeeze your scrotal package in too
“damn bro i was balls deep in her (or him) last night”
“holy shit man! did they fit?”
When you thrust your erect penis into a gentleman’s behind (ass).
‘I was balls deep in Ishaq last night.’
‘The other night, Levi was hanging out of the back of me, balls deep, woah! I shuddered’
When a penis is inserted fully into a vagina
I fucked my gf balls deep last night