hotboxing       
noun [ U ]  informal (also hot-boxing, hot boxing) uk/ˈhɒtˌbɒk.sɪŋ/ us/ˈhɑːtˌbɑːk.sɪŋ/
 热箱吸烟;热箱吸毒:在一间灌满烟雾的斗室呼吸,尤指吸毒
the practice of filling a small room or space with smoke from something, especially an illegal drug, in order to be able to breathe it in
  Usually, the drug involved in hotboxing is marijuana. 通常,供热箱吸毒的药物是大麻。 
 - More examples
 - Hot boxing involves smoking or vaporizing cannabis in an enclosed area such as a car, a cubicle, or a small room.
 - He admitted taking part in hot-boxing, the practice of getting high by filling a vehicle you are in with marijuana smoke.