- a short sound as of a small, solid object dropping into water without a splash（固态物体无水花掉到水里发出的）扑通声。
verb
1plopped, plopping
- fall or cause to fall with such a sound（使）扑通一声掉下：
no obj. the stone plopped into the pond那块石头扑通一声掉进了池塘
with obj. she plopped a sugar cube into the cup.她将一块方糖扑通一声放进了杯子里。
1.1
plop oneself down
sit or lie down gently but clumsily轻而笨拙地坐下（或躺下）：he plopped himself down on the nearest chair.
他小心而笨拙地坐在了最近的一张椅子上面。
词源
early 19th cent.: imitative.