bust one's balls

idiomatic vulgar

(idiomatic, vulgar) to work very hard; to put in a lot of effort.

Japanese Meaning

（俗語、卑猥な表現）大変懸命に働く、一生懸命努力する

To pass the bar exam, one has to bust one's balls studying for months.

司法試験に合格するには、何か月も必死に勉強しなければならない。

Sense（1）

(idiomatic, vulgar) to work very hard; to put in a lot of effort.

busts one's balls

（ present singular third-person ）

busting one's balls

（ participle present ）

busted one's balls

（ participle past ）

busted one's balls

（ past ）

bust one's balls

（ participle past ）

bust one's balls

（ past ）