1960s North London (UK) playground
slang/shout used to opt out of a game temporarily, or to prevent yourself being tagged in a game. Often it is accompanied be crossing the fingers and the arms in front of your chest and standing still.
The call can also be used to suspend a whole game temporarily, for example when an adult walks across a
football pitch
Said to be derived from the Old
English "Fain would I..." or "I do not want to..."
"I was about to be
tagged, but I shouted "fainites" so he went on and
tagged someone else."
"I was just about to boot the ball when an old
lady walked across the playground and someone shouted "fainites".