To make a mess of, destroy or ruin; SYN. fumble, botch up, muff, blow, flub, screw up, ball up, blunder, spoil, muck up, bungle, fluff, bollix, bollix up, bollocks, bollocks up, bobble, mishandle, louse up, foul up, mess up.
To fake or falsify; SYN. manipulate, fake, falsify, cook, wangle, misrepresent.
ETYM Cf. Scamp, or Scant, and Skimp.
To perform hastily and carelessly.