He stepped along, lashing abstractedly at a boot with his whip.
Now, he seemed moody and often angry, lashing out at her and their daughter, Sara.
Or he could have been a coward, lashing out at me for some online slight.
c.1300, las "a blow, a stroke," later "flexible part of a whip" (late 14c.), possibly imitative. The verb might be the source of the noun.
"bind," 1620s, originally nautical, from Middle French lachier, from Old French lacier "to lace" (see lace (v.)). Related: Lashed; lashing.