jumping the gun

Idiom #1: Jumping The Gun


1. An expression whose meaning is not predictable from the usual meanings of its constituent elements.

Jump the gun:
to do something too soon, especially without
thinking carefully about it.


UPDATE: There have been dozens of hits on this page from Google searches for “jump the gun” during the months of June and July (2012). I’m curious as to what class at what school is doing research on idioms! Any others you’d like to see illustrated photographically?