PLOP

noun

1. A sound or action like liquid hitting a hard surface, or an object falling into a body of water.
2. Excrement; derived from the "plop" sound made when it hits water in a toilet.

verb

1. To make the sound of an object dropping into a body of liquid.
2. To land heavily or loosely.
3. To defecate; derived from the "plop" sound made when excrement hits water in a toilet.