\Sans`-cu`lotte"\ (F. ?; E. ?), n. [F., without
breeches.]
1. A fellow without breeches; a ragged fellow; -- a name of
   reproach given in the first French revolution to the
   extreme republican party, who rejected breeches as an
   emblem peculiar to the upper classes or aristocracy, and
   adopted pantaloons.
2. Hence, an extreme or radical republican; a violent
   revolutionist; a Jacobin.