1. balls deep - Adjective
2. balls deep - Adverb
balls deep (not comparable)
(vulgar, slang) Extremely; to the fullest extent possible.
Although he was hesitant to pick up James Joyce, he soon fell in love with Dubliners and was balls deep into Ulysses.
balls-deep (not comparable)
(slang, vulgar) With the penis fully immersed in an orifice, more often the anus or vagina than the mouth.
I like to fuck balls-deep. If they can't take it all it's not worth the time.
(slang, vulgar) Having the penis fully immersed in an orifice, more often the anus or vagina than the mouth.
He was balls-deep in his girlfriend and cumming in buckets.
(slang, vulgar) Fully committed to a situation.
I'm balls-deep into this essay; no turning back.
balls-deep