Source : Webster's Revised Unabridged Dictionary (1913)

Romp \Romp\, v. i. [imp. & p. p. {Romped}; p. pr. & vb. n.
   {Romping}.] [A variant of ramp. See {Ramp} to leap,
   {Rampallian}.]
   To play rudely and boisterously; to leap and frisk about in
   play.