deceive, cheat, hurried, bustling
譸 centers on using words to mislead or create a false impression: deceiving or cheating. The hurried, bustling sense likely extends from the idea of frantic, deceptive talk or activity.
譸 combines 言 (speech) with 壽, which likely contributes the sound and may relate to the idea of twisting or turning words to deceive. The exact historical development is uncertain.
The left side 言 is speech, and the right side 壽 looks like a complex, tangled web. Picture someone weaving a tangled web of words to deceive and cheat, creating a hurried, bustling confusion.
For チュウ, imagine a deceptive person named Chu who cheats with hurried, bustling talk: Chu -> チュウ, and his words twist the truth.