spara-spara
n.— «Soweto youths aren’t alone in their crazy train-surfing habits.…Typically spurred on by whistles and admiring female looks, young train surfers will…run noisily along platforms (“spara-spara”).» —“The Big Picture: Train Surfing” by Sean O’Toole Times (Johannesburg, South Africa) Oct. 28, 2007. (source: Double-Tongued Dictionary)