This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
嘙 combines 口 (mouth) with 婆 (old woman), but the exact historical development and original meaning are uncertain.
The left side is a mouth 口, and the right side is 婆 (old woman). Without a clear meaning, picture an old woman speaking, but remember the meaning is uncertain.
For ハ, imagine an old woman laughing 'ha!' (ハ) with her mouth 口 wide open.
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