abaa

Barrère & Leland and Green's Dictionary of Slang suggest it could be from English baa, from the onomatopoeia of the bleating of a sheep.

abaa (comparative more abaa, superlative most abaa)

1. (archaic, British slang) Contemptible; vile; silly.

• abaa cove
• abaa muff

abaa (plural abaas)

1. (archaic, derogatory, British slang) Someone who is not a trade unionist.

• knobstick

• scab (“strikebreaker”)
• blackleg (“strikebreaker”)
• scalie (“strikebreaker”)

• Albert Barrère and Charles G[odfrey] Leland, compilers and editors (1889–1890) “abaa”, in A Dictionary of Slang, Jargon & Cant […], volume I (A–K), Edinburgh: […] The Ballantyne Press, →OCLC, page 2.

• AAAB, baaa

abaa

1. daddy, dad (term of endearment)

• wor (“father”)

• Blackings, Mairi John (2009) Acholi English – English Acholi Dictionary‎^[1], Munich: LINCOM GmbH, →ISBN, page 2

abáa

1. alternative spelling of aba-a