An Encylopedia Britannica Company

whoopee cushion

1 ENTRIES FOUND:
whoopee cushion noun
plural whoopee cushions
whoopee cushion
noun
plural whoopee cushions
Britannica Dictionary definition of WHOOPEE CUSHION
[count]
: a rubber bag filled with air that is used as a joke and that makes a loud, rude noise when someone sits on it