Green’s Dictionary of Slang

tar n.3

[fig. use of SE tar = essence, ‘daylights’]

In phrases

kick the tar out of (v.) (also batter..., beat..., knock..., lick..., pound..., scare..., whale…)

(US) to beat someone up very badly.

Dly Inter-Mountain (Butte, MT) 20 Aug. 3/5: A terrific fist fight between two young society bloods created a [...] sensation last night [...] Fortune favored the light young blood from the start and the aggressor had the tar whaled out of him.
[US]J. London Valley of the Moon (1914) 154: The children of the white people that broke away from England an’ licked the tar outa her.
[US]S. Ford Torchy, Private Sec. 91: He’d made his grand roarin’ lion play, which had always scared the tar out of his folks.
[US]W.Y. Stevenson At the Front in a Flivver 9 Sept. [Internet] if they saw a gun emplaced, they’d simply shell the tar out of us.
[US]S. Lewis Babbitt (1974) 250: No wonder he wants to beat the tar out of those sons of guns!
[US](con. 1900s) S. Lewis Elmer Gantry 10: By God, I’ll knock the tar out of um!
[US]E.H. Lavine Third Degree (1931) 111: Somehow or somewhere someone or something beat the tar out of the thug for being a squealer.
[US](con. 1920s) J.T. Farrell Young Manhood in Studs Lonigan (1936) 198: What he needs is to get the tar kicked out of him.
[US]W. Smitter F.O.B. Detroit 50: Why didn’t you pound the tar outa him?
[UK]G. Kersh They Die with Their Boots Clean 5: You’re going to batter the tar out of Old Adolf.
[US]S. Philips Big Spring 59: You just started out by whaling the tar out of him [DA].
[US]W. Myers ‘Guv’ 248: He beat the living tar out of me two weeks ago [DA].
[US]J. Thompson Savage Night (1991) 23: If we spilled a little meal [...] or something like that, he’d beat the tar out of us.
[US]Mad mag. Feb. 4: Ich’ll whale der tar aur frum dem!
[US]S. King Stand (1990) 517: He’d whale the tar out of me.
[US]S. King Different Seasons (1995) 455: You’re gonna get the tar whaled out of you.
[US]‘Joe Bob Briggs’ Joe Bob Goes to the Drive-In 155: Wanda Bodine is trying to find me so she can kick the tar out of me over remarks I made the last two weeks.
S. Schneider review of ‘Mean Machine’ at RottenTomatoes.com [Internet] there’s just something about watching a squad of psychopathic underdogs whale the tar out of unsuspecting lawmen that reaches across time and distance.