Wiktionary:Word of the day/2022/February 17

Word of the day
for February 17
go postal v
  1. (intransitive, chiefly US, informal) To become aggressive and erratic, especially due to stress; specifically, to carry out a shooting spree at a workplace environment; also (more generally) to become very angry; to lose one's temper.
← yesterday | About Word of the DayNominate a wordLeave feedback | tomorrow →