We shall investigate the use of Swahili slang in Freddy Macha`s tiny collection of short stories Twen `zetu Ulaya (DSM 1984), and especially in his short story Check-bob This is arguably the only epistolary short story in modern Swahili literature; in fact, epistolary novels are uncommon in anglophone Afiica as a whole. In this narrative two former lovers show abuses on each other and their four letters - two by each character - unfold the story of a selfish young woman who shamelessly exploited her boyfiiend and the manner in which he paid her back with her own coin. It is interesting to note how the same events are presented from two different perspectives and hence evaluated differently.