This phrase is often employed when one
accidentally touches someone inappropriately, say while brushing against a coworkers bosom while squeezing past in a crowded elevator, and is used to convey that the
inappropriate touch was unintentional.
One should take care that this phrase is not mistaken for "No, Cuomo," which roughly translates to "Please pardon my predatory and
inappropriate behavior, for I am of Italian descent and don't know any better."