a way to say the word fuck,without getting into trouble,or it being censored,etc
comes from one of the word fucks names
the f word,f is prounounced eff,or ef,whatever,thus creating effin
mistl means fuck or fucking
effin comes from the name of an Irish Saint - St. Eimhin, pronounced Effin. So it is actually the name of a parish in Co Limerick, Ireland and some of us are very proud of it!!!
I grew up in Effin Co. Limerick, Ireland