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randomly adding "ism" to the end of a word to make yourself or the word sound cool.
felicia: hey, i got seth a body waxing kit for graduation. wanna help me wax his chest?
mick: that's not weird at all (sarcasism)
felicia: you spelled sarcasm wrong
mick: i spell words how i want to, i call them mickleisms.
by felicsaurus June 06, 2009