jack revved his engine and as he slashed and dashed through the dirt bumps and turns he was welcomed with an all too familiar feeling of brain tickles underneath his helmet
when you're on your motorbike, going through heavy terrain, and the sensations of everything around you combine to tickle your brain
"jack revved his engine and as he slashed and dashed through the dirt bumps and turns he was welcomed with an all too familiar feeling of brain tickles underneath his helmet" What is the definition of "brain tickles"?