Green’s Dictionary of Slang

bushwa n.

1. (also booshwah, boushwah, bushwah, bushwash) nonsense, euph. for bullshit n. (1) [f. bullshit n. (1), but ? link to Can. bois de vache, buffalo dung].

[US]National Police Gazette n.p.: ‘Bushwa’ [...] a term of derision used to convey the same comment as ‘hot air’ [HDAS].
Hampton’s Mag. 25 464/2: Mostly every election keeps [...] the newspaper boys fagged out thinkin’ different means to shoot the same old bushwah in a new form.
[US]Dos Passos Three Soldiers 246: Can’t do anything without getting a general order about it. Looks to me like it’s all bushwa.
[US]W.R. Morse ‘Stanford Expressions’ in AS II:6 275: booshwah—talking for talk’s sake.
[US]J.L. Kuethe ‘Johns Hopkins Jargon’ in AS VII:5 329: booshwah—nonsense.
[US]D. Fuchs Low Company 44: Come on and let’s cut the bushwah.
[US]J.T. Farrell Tommy Gallagher’s Crusade 72: Tommy grinned. The usual boushwah of the Reds, he reflected.
[US]J. Mitchell ‘Professor Sea Gull’ in Joe Gould’s Secret (1996) 13: The Oral History is a great hodgepodge [...] an omnium gatherum of bushwa, gab, palaver, hogwash, flapdoodle, and malarkey.
[US]W. Guthrie Seeds of Man (1995) 292: Iffa you lose your heads tonight, see, you cannota remember thissa boosha here de broosha, eyekay?
[US]S. Bellow Augie March (1996) 149: Oh, fooey, no. What bushwah! Love, shmuv!
[US]S. Longstreet Flesh Peddlers (1964) 260: We’re drinking, or talking bushwa.
[UK]D. Morrell First Blood 72: Government man. Bushwah. Look at him, where the hell would he hide his badge.
[US]T. Berger Sneaky People (1980) 149: That’s bushwa and you know it.
[US]H. Rawson Dict. of Invective (1991) 64: The term has been euphemized as B.S., booshwah, bushwa, bushwash, bull, pedigreed bull, prize bull, bovine excrement, heifer dust.
[US]H. Harrison Bill [...] on the Planet of Robot Slaves (1991) 93: Do you expect me to believe that old bushwah?
M. Davidson Royal Treatment 181: Once you get past the ‘I’m too sexy for my shirt’ bush-wah, he’s a pretty nice guy.

2. attrib. use of sense 1.

Plumbers Trade Jrnl 38 328: He guarantees that this will be no Bush Wah game.
[US](con. 1917–19) Dos Passos Nineteen Nineteen in USA (1966) 476: They said this war talk was a lot of bushwa propaganda.

3. (also boushwa) a pretentious, arrogant person [f. Can. bourgeois, the head voyageur of a trading post or expedition].

[US](con. 1920s) J.T. Farrell Judgement Day in Studs Lonigan (1936) 751: He’d be willing to bet that this Boushwa was as bad, and could hardly speak English.

4. a yokel.

[US]Berrey & Van den Bark Amer. Thes. Sl. §391.3: rustic, bumpkin, bushwa.

5. (US Und.) an outsider who dislikes criminals.

[US]Monteleone Criminal Sl. (rev. edn).