(noun) fuck; damn,
mothafucka........... it
originated from the old times in Jamaica when it was refered to the cloth that women used to cleanse themselves with when they had their period. If a women despised you then she would throw her cloth at you symbolizing that you were the epitome of scum and were "cursed".As for the "clot" its a
mispronounciation of Jamaicans because of their lack of the sound "th" hence clot=cloth. See bloodclot.