French inhale
Encyclopedia
The French inhale is a trick one can perform while smoking
Smoking
Smoking is a practice in which a substance, most commonly tobacco or cannabis, is burned and the smoke is tasted or inhaled. This is primarily practised as a route of administration for recreational drug use, as combustion releases the active substances in drugs such as nicotine and makes them...

. One takes a deep drag, then while the mouth is open and the jaw is slowly closed to force the smoke out, one inhales through the nose, thus inhaling the smoke drifting from the mouth.
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