Plop \Plop\ (pl[o^]p), v. i. [imp. & p. p. {Plopped} (pl[o^]pt);
p. pr. & vb. n. {Plopping}.] [Imitative.]
1. To fall, drop, or move in any way, with a sudden splash or
slap, as on the surface of water.
[Webster 1913 Suppl.]
The body plopped up, turning on its side. --Kipling.
[Webster 1913 Suppl.]