noun. Sneak Lemming
A Sneak Lemming is the only lemming from the pack smart enough to wait until all the other lemmings have jumped off the cliff and then change his/her mind.
adj. Sneak Lemming
Person or persons who fail to follow a stupid trend.
Everybody thought that glass shoes would be great for the disco. At the end of the night the Sneak Lemming's were the only ones without bloody feet.