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From French a contraction of à bas le costume ("down with the western suit") (Wiktionary)


  • Even during the years when he was reviled, it was hard to see "Zairian-ness" without the principles of the ruling MPR state-party, and the "abacost", and the pride in our music industry, and our much famed (yet little enjoyed) natural resources.

    Kim Gjerstad in Congo

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