>>44833301its a visual depiction of a japanese proverb: "a duck comes bearing onions" as in a nice unexpected occurrence out of nowhere(in game there's only 1 available which you just have to trade for a shitty spearow). Its also used to describe an idiot sucker (a duck+onion combo walking towards you ready to be cooked into a meal)
basically it's supposed to be a joke pokemon that is intentionally supposed to be shit. besides ditto, farfetchd is the fully evolved pokemon from gen 1 with the absolute worst stats.
but no, let's turn it into a knight jobmon because its a british region xD. epic reference