I'd like to know how you'd translate this passage from An Braon Broghach, page 49, in the bottom:

"D'imigh faocha den charraig mar bheadh sé ina 'bhuailim ort, tigim leat' aici féin agus ag an scaird fharraige ..."

thanks in advance

My guess is that "Buailim ort, tigim leat" is a phrase from a childrens chasing game.

A periwinkle went from the rock as though it were a "I hit you, I go with you" with herself and the swoop of the sea.

Awkward translation, I'm afraid.