den Arsch aufreißen

Verb

 * 1)  to bust one's ass, to work one's ass off to work very hard
 * 2)  to bust someone's ass to make someone work very hard
 * 1)  to bust someone's ass to make someone work very hard
 * 1)  to bust someone's ass to make someone work very hard
 * 1)  to bust someone's ass to make someone work very hard
 * 1)  to bust someone's ass to make someone work very hard