This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
郶 combines 咅 and 邑, but the exact historical development and original meaning are uncertain. It may be a variant or regional character.
The left side 咅 looks like a mouth 口 under a standing shape 立, and the right side 邑 suggests a city or region. Picture a place name where a local dialect is spoken, but the exact meaning is unclear.
For ブ, imagine a boo sound coming from the mouth 口 in 咅, as if someone is booing a place name: boo -> ブ.
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