To abruptly dismiss or stop someone who is in the middle of something. The 1970s TV show The Gong Show popularized the practice of halting a talent act by striking a gong. I thought my presentation was going well, until the boss gonged me halfway through and wouldn't let me continue!
gonged
(gɔŋd)
mod. drug intoxicated. (Drugs. Originally on opium.) Mooshoo found himself in the alley, gonged.