Wiffleball
Alternative forms
Origin
From (onomatopoeia) whiff ("to strike, to strikeout") + ball.
Not derived from whiffle, though both derive from same onomatopoeic sources, namely a sound of wind.
Full definition of wiffleball
Noun
wiffleball
(uncountable)- (US) A game similar to baseball, played with a lightweight bat and ball and suitable for children to play in confined areas. Also the ball used in that game.