shame, disgrace
謑 centers on the feeling of shame or disgrace, often tied to words or reputation.
謑 combines 言 (speech) with 奚, which likely contributes the sound and may relate to the idea of shame or disgrace through words.
Words (言) beside 奚, which looks like a person tangled in a net of shame. Imagine someone's disgraceful words trapping them in embarrassment.
For ケイ, picture a shamed person holding a cake (ケーキ) that fell on the floor: cake -> ケイ, and the disgrace is written all over their face.