dunk out
verb1
To extinguish (a flame or lit cigarette) by dunking it into a liquid.
- "They'll stall," Walt said and dunked out his cigarette.1998, William Hoffman, Tidewater Blood:
2
Misconstruction Misconstruction of dump out (“empty a container by turning its contents out over a surface”).
3
Misconstruction Misconstruction of duck out.