When two or more people are arguing back and forth and one's comeback is so absolutely absurdly diabolical, it leaves the opponent stunned or unable to respond with anything better than what was said. Shortly, someone is silenced with another comeback.
Euphoria Season 2 episode five
Rue "I can't do this sh*t forever"
Cassie in a snide remark "You don't have to... just take it one day at a time"
Rue "Hey Cass"
Cassie"Yeah?"
Rue"I have a quick question for you"
Cassie "What?"
Rue "... How long have you been f*cking Nate Jacobs?"
*audible 4 second silence* (Cassie was gagged)
Cassie *laughs sheepishly* "I- I - Wha- what are you talking about?"