tripup Cause to stumble Throw off balance Keep from succeeding Cause to goof Catch in a lie, e.g Catch in a con (Cause to) stumble Expose in a blunder Catch in a lie, say Catch in a contradiction Cause to err Foil Cause to blunder Trick Catch in a blunder Leave without a leg to stand on Cause to make a mistake Make a mistake Cause to fall Catch in a lie