chief out
to propose, prepare, or engage in the smoking of cannabis in large quantities
"Yo dog, cruise to my pad and lets chief out
Chief out
To close all windows to keep in smoke. aka hot boxing
"Lets go chief out his car"
Chiefed Out
To get so high on marijuana that you pass/black out
Dylan was chiefing in the basement with his brother. He got so high he chiefed out.