jumpout

Noun

jumpout (plural jumpouts)

1. A separation from a groove, track, etc., that otherwise constrains motion.
   • Encroachment into potential flood avenues resulted in jumpouts, flooding, and extensive siltation.1995, John E. Costa, Natural and Anthropogenic Influences in Fluvial Geomorphology: The Wolman volume, page 210
2. A ramp or other construction that allows wildlife to exit safely from a freeway, highway, etc.
3. (Australia) An unofficial trial race.
   • The few who attended Tuesday's important Lightning Stakes jumpouts at Flemington on Tuesday may have been put off by Swick's lethargic display.2009 January 31, Matt Stewart, “Bart Cummings ready to derail Lightning match race”, in Herald Sun, archived from the original on 05 Feb 2009
   • I did get to ride in a couple of barrier jumpouts, but even that was sprung on me. I was riding a horse towards the track when Murty said it was going for a jumpout, a sprint about 400 metres from the barriers down the home straight.2011, David Brasch, Peter Cook, Jockeying To The Top, unnumbered page
4. (US, slang) A plainclothes narcotics officer.
   • “Well, I figured if the jumpouts came they wouldn′t search her,” says Rosa Lee. “They′d search me but they wouldn′t find nothing.”1997, Leon Dash, Rosa Lee: A Mother and Her Family in Urban America, page 33