n. piston, cylindrical part that operates with a plunging motion (Mechanics); plumber's tool consisting of a rubber suction cup attached to a pole; one who jumps or dives into water; reckless gambler, bettor (Slang)
PLUNGER
Meaning of PLUNGER in English
Explanatory English dictionary bed edition. Толковый словарь английского языка Редакция bed. 2012