This article is from the RSC/UKSC Cricket FAQ, by Ganesh with numerous contributions by others.
It is well known that Bosanquet invented the googly
around 1900, but does anyone know who first used the
flipper?
samarth harish shah:
Clarrie Grimmett. In fact, he also "faked" his flipper,
sometimes. He would bowl an ordinary flighted ball and
snap the fingers of his _LEFT_ hand. The batsmen in those
days, going purely by the sound, would play for the flipper
and be beaten all ends up by the turn.
 
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