green / (slang) (derived from 綠帽子|绿帽子[lü4 mao4 zi5]) to cheat on (one's spouse or boyfriend or girlfriend)
绿
=
录
+
纟
:
Loki (lü) wants to preserve the green (绿) chlorophyll of leaves he collected in the space station's bathroom (Ø4) by putting them into his diary (录). As he opens his diary a few days later he is very upset to see that the silk worm (纟) ate all of them by eating through the pages of his diary.