Sport

Pronunciation	/spɔːt/ (スポート)
Part of Speech	noun
English Definition	A casual, friendly form of address for a man, similar to 'mate' — 'thanks, sport.'
Japanese Translation	『スポート』（男性への親しみを込めた呼びかけ、『mate』に近い）
Japanese Explanation	男性に対して親しみを込めて呼びかける際に使う言葉。『mate』に近いニュアンス。

Origin

Extension of 'sport' (a good fellow/sportsman) into a general friendly address term.