The Collaborative International Dictionary of English v.0.48:

Jet \Jet\, v. i. [imp. & p. p. Jetted; p. pr. & vb. n.
   Jetting.] [F. jeter, L. jactare, freq. fr. jacere to throw.
   See 3d Jet, and cf. Jut.]
   [1913 Webster]
   1. To strut; to walk with a lofty or haughty gait; to be
      insolent; to obtrude. [Obs.]
      [1913 Webster]

            he jets under his advanced plumes!    --Shak.
      [1913 Webster]

            To jet upon a prince's right.         --Shak.
      [1913 Webster]

   2. To jerk; to jolt; to be shaken. [Obs.] --Wiseman.
      [1913 Webster]

   3. To shoot forward or out; to project; to jut out.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

jetting \jetting\ adj.
   being propelled violently in a usually narrow stream; -- of
   liquids.

   Syn: spouting, spurting, squirting.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

jetting
    adj 1: propelled violently in a usually narrow stream [syn:
           jetting, spouting, spurting, squirting]