那个推销员用花言巧语一直在糊弄顾客购买过时的产品。

The salesman kept bamboozling customers into buying outdated products with his smooth talk.

bamboozling 是动词 bamboozle 的现在分词形式。bamboozle 意思是"欺骗、哄骗、糊弄"，通常指用花言巧语或诡计让人上当受骗。这个词带有非正式和幽默的色彩。