This was uttered by Joe Salerno, who apparently rivaled “The Master” (see my book, “He Smokes Like a Fish and other Malaphors” available on Amazon, regarding the amazing “Master”) in unintended idiom mixups. This is just one of them. Joe had a PhD in English from the University of Michigan so it just goes to show you that everyone coughs up a few malaphors now and again. This one is a mashup of “that’s no skin off my nose” (not harmful or bothersome to me) and “give the shirt off my back” (to give anything that is asked for, no matter the sacrifice). The common words “off my” and the similar sounds of “skin” and “shirt” are culprits here. Certainly one can rub a nose when taking off a shirt, and that vision might have popped up in the speaker’s mind. A big thanks to Robert J. Smith for sending this one in and relating stories about the infamous Joe Salerno. Also a shout out to Joe Rich for appreciating the Joe Salerno malaphors and spreading the good word (or idiom?).