飞沫四溅
fēi mò sì jiàn
to spray in all directions
fly (飞) + foam (沫) + four (四) + splash (溅) = spray in all directions
Picture tiny droplets taking flight and scattering to all four sides at once. 末 gives 沫 its sound; 贱 gives 溅 its sound — the water radical (氵) carries the liquid meaning in both.
他大笑时，飞沫四溅，旁边的人都躲开了。
tā dà xiào shí, fēi mò sì jiàn, páng biān de rén dōu duǒ kāi le.
when he laughed loudly, droplets sprayed in all directions, and the people nearby all moved away.
瀑布冲下来，飞沫四溅，把站在旁边的我们都打湿了。
pù bù chōng xià lái, fēi mò sì jiàn, bǎ zhàn zài páng biān de wǒ men dōu dǎ shī le.
the waterfall came crashing down, spraying droplets in all directions, soaking all of us who were standing nearby.