竄紅

窜 = 串 + 穴 : Kitty Cat hat to flee from the terrible regime of Cat Country, and she found refuge in the anthill's bathroom. All she could bring was a plastic bag with her stuff, in fact only a skewer. To make her feel at least a little at home, she covers the bathroom's walls in cave paintings of her skewer.

红 = 工 + 纟 : Mnemonic symbol: a little red book.

Helga Horse (hu) is reading the little red book (红) in the engine's kitchen ((e)ng2), when she discovers that it is being eaten by a silk worm (纟). She overreacts a little and wants to beat the silk worm with a steel beam (工).