bitch out verb 4bitch-out noun 1forms 4 verb4 •(slang, vulgar) To not do something out of fear; chicken out.I'll talk shit like I'll escape then bitch out at the last second. — 2019 •(slang, vulgar) To back out of an agreement for any reason.My dad promised he would take me to a restaurant for dinner today, but much later, he was unexpectedly bitching out. •(slang, vulgar) To complain.You idiot, get your ass over here right now! Why do you always have to bitch out at me?My mom bitches out every time she sees bad grades on my school report card. •(slang, vulgar) To yell at; to reprimand; to chew out.My dad bitched me out when he found out what I did to his car. bitch-out noun1 •(informal) A vocal argument or criticism, especially for insignificant reasons.Well, at least the bitch-outs were down to once or twice a week rather than every day. — 2016 formsbitched out · bitching out · bitches out · bitch-outs