▁series , ▁it ▁was ▁originally ▁broadcast ▁on ▁Com edy ▁Central ▁in ▁the ▁United ▁States ▁on ▁April ▁ 8 , ▁ 2 0 0 9 . ▁In ▁the ▁episode , ▁Jimmy ▁writes ▁a ▁jo ke ▁that ▁becomes ▁a ▁national ▁sens ation , ▁and ▁Cart man ▁tries ▁to ▁ste al ▁the ▁credit ▁while ▁ra pper ▁K any e ▁West ▁is ▁the ▁only ▁person ▁in ▁the ▁country ▁who ▁fails ▁to ▁get ▁the ▁jo ke , ▁but ▁cannot ▁admit ▁that ▁he ▁does ▁not ▁get ▁it ▁because ▁he ▁bel ieves ▁himself ▁to ▁be ▁a ▁genius . ▁ ▁The ▁episode ▁was ▁written ▁and ▁directed ▁by ▁series ▁co - cre ator ▁Tre y ▁Parker , ▁and ▁was ▁r ated ▁TV - MA ▁L ▁in ▁the ▁United ▁States . ▁The ▁episode ▁was ▁conce ived ▁from ▁a ▁jo ke ▁among ▁Parker ▁and ▁fellow ▁co - cre ator ▁Matt ▁Stone ▁about ▁a ▁fish ▁dressed ▁as ▁motor cycle ▁dare dev il ▁E vel ▁K nie vel , ▁which ▁eventually ▁turned ▁into ▁a ▁jo ke ▁about ▁K any e ▁West ▁not ▁understanding ▁a ▁jo ke ▁about ▁why ▁lik ing ▁fish st icks ▁made ▁him ▁a ▁gay ▁fish . ▁The ▁way ▁Cart man ▁tries ▁to ▁ste al ▁credit ▁for ▁the ▁jo ke ▁was ▁inspired ▁by ▁real ▁people ▁Parker ▁and ▁Stone ▁have ▁worked ▁with ▁in ▁the ▁television ▁business . ▁ ▁Parker ▁provided ▁the ▁voice ▁of ▁West ▁in ▁the ▁episode ▁and ▁during ▁the ▁song ▁" G ay ▁Fish ", ▁a ▁par ody ▁of ▁West ' s ▁song ▁" He art less ". ▁" F ish st icks "