gangimari

(n., from Japanese ガンギマリ, also ガンギマリ顔 “gangimari face”)

The state of drug-crazed euphoria when you're high as a kite, usually from marijuana, methamphetamine, or asacoco.

Etymology: Portmanteau of ガンジャ “ganja” (marijuana) and キマり キマっている “kimari/kimatteiru” (slang for the euphoric effects after drug consumption, original meaning “to look good in”), also onomatopoeic ガン “gan” like a gong being hit