one under

== English == === Pronunciation === === Noun === one under (plural one unders) (rail transport, slang, British) A person under a train; a person hit by a train after jumping or falling in front of it. 2002, "Tube Troll", ">Incident @ Hangar lane tube <", uk.transport.london [1] The twist in this tale is that the driver (who was at the back and hadn't seen anything) booked off with stress (as drivers often do after a one under) and the guard who had been driving and witnessed the whold [sic] traumatic event had to creep into work the next day and pretend that nothing had happned... 2004, "Joe", "TV Alert: BBC3 9pm Trauma TONIGHT", uk.railway [2] About a one under on the Northern line. 2005, "Neilw001", "'One under'", uk.transport.london [3] I've been on a train when some [sic] has gone under. Actually heard the thump and then the driver on the radio saying "I've got one under". ==== Usage notes ==== Used primarily in relation to incidents on London Underground, but is also used for other railways in the UK. ==== Synonyms ==== person under train (London Underground, official) track pizza (New York)