Wiktionary
vb. (context chiefly US transitive English) To berate (someone or something) using profane language; to swear at (someone or something), especially at length.
Usage examples of "cuss out".
Jake was too busy to cuss out that comfortable) anonymous bureaucrat who had specified the wattage of the bulbs in the fire warning lights- They were certainty impossible to miss.
You've heard me rant and rave, you've heard me cuss out my people, you've heard me be an absolute tyrant.
I still don't know nothing about Joe, understands or cuss out the guys at the tank because I blame them for this.
She's supposed to cuss out and beat down anything that comes for her or her family.
It was odd to see a sweating teamster cuss out her horses, and have a broken strap on Jeb's headstall repaired by a handy-woman quartermaster sergeant.
Clemens was afraid that he'd lose his temper and cuss out King John as no one else in the universe had ever been cussed out before.