Source : Webster's Revised Unabridged Dictionary (1913)

Rocket \Rock"et\, v. i. [imp. & p. p. {Rocketed}; p. pr. & vb.
   n. {Rocketing}.] (Sporting)
   To rise straight up; said of birds; usually in the present
   participle or as an adjective. [Eng.]

         An old cock pheasant came rocketing over me. --H. R.
                                                  Haggard.