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Obliviousness when walking or otherwise in motion while simultaneously playing with or peering at a hand-held gadget. Often a public nuisance, as when slow, erratic, or careless movement impedes or leads to collision with others; sometimes also dangerous to the cell blind themselves, as when crossing a busy street without looking because engrossed in texting, IM-ing, or similarly urgent activities.

See: cell blindness (n.), cell-blind (v., adv.), and cell-blindly (adv.)
Darwin Award nominees include a cell blind woman who fell through an open manhole cover.
by notdogen January 24, 2011