thwack /θwæk/verb 8noun 2exclamation 1forms 4 verb8 •To hit (someone or something) hard, especially with a flat implement or a stick; to thrash, to whack.This carter thwacketh his horse upon the croup, / And they began to drawen and to stoop. — 1860 •(figurative) To decisively defeat (someone) in a contest; to beat, to thrash.[W]hat adventurous knight ever thought of the lady's terror, when he went to thwack giant, dragon, or magician, in her presence, and for her deliverance? — 1821 •To drive or force (someone or something) by, or as if by, beating or hitting; to knock.But let him svveare so, and he shall not stay, / VVee'l thvvack him hence vvith Distaffes. — 1610 •To fall down hard with a thump.And see, that urchin, ho-ieroe! / His truant legs they sink from under, / And to the quaking sheet below [i.e., ice on which he has been skating], / Down thwacks he, with a thud like thunder! — 1831 •To pack (people or things) closely together; to cram.[W]hen hee comes to describe the office of his imaginarie doctor [he] thvvacks fourteene Scriptures into the margent, vvhereof not any one hath any iust colour of inference to his purpose: […] — 1610 •(no longer used) To crowd or pack (a place or thing) with people, objects, etc.And my lad Ascanius with a Troian mantel adorning, / Weau'd woorks thwackt with honor, to her gifts this parlye she lincketh. — 1582 •(no longer used) To be crammed or filled full.[A]ll that vvere vvithin the audience of these vvords and dovvn the Church, vvhich vvas as full as it could thvvack in thick multitudes, gave a loud general applause. — 1650 •(no longer used, rare) Of people: to crowd or pack a place.All the vvise vvenches i'the Tovvn vvill thvvack to such Sanctuaries, vvhen the times are troublesome, and Troopers trace the streets in terror. — 1629 noun2 •An act of hitting hard, especially with a flat implement or a stick; a whack; also, a powerful stroke involved in such hitting; a blow, a strike.Noble Captain, Lend a reasonable Thvvack, for the Love of God, vvith that Cane of yours, over these poor Shoulders. — 1704 •A dull or heavy slapping sound."It's a comfort they're most on'em females," he pursued, sounding a thwack on his knee as he settled himself agreeably in his seat. — 1859 exclamation1 •Used to represent the dull or heavy sound of someone or something being hit or slapped.And then—Thwack! Anne had brought her slate down on Gilbert's head and cracked it—slate, not head—clear across. — 1908 formsthwacked · thwacking · thwacketh · thwacks