To fall to your death as a result of negligence or stupidity. The term comes from Urban Terror, a popular free online FPS.
"Joe decided to do the lemming thing rather than face us in battle."
"What a coward. Or maybe just an idiot."
by MarshoT September 13, 2009
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Ostrich-sheeple-lemmings are humans who figuratively bury their heads in the sand so they don't see, act like a herd of sheep, then herd themselves over a cliff like lemmings.
Jane called John an example of ostrich-sheeple-lemmings for refusing to face reality.
by fred ressler April 16, 2017
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The Tesco Value Lemming is the natural evolution of the ordinary lemming, sped up by the effect of nuclear radiation from Tesco's main power source. The Tesco Value Lemming is blue and white, and leaps off doorsteps and low shelves.

Occasionally more daring ones can be bred which will jump off fences, windowsills or use tiny bikes to leap over pits of spikes or flames. They are generally taken as the alpha males of the group, or "shop floor", until the mis-judge a jump and plummet to their death in the frozen foods section.
"I was going to buy a hamster today, but I found two Tesco Value Lemmings for only 99p!"
by Dave Beaste April 10, 2006
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When a girl's hair gets in a guy's face and/or mouth while he is grinding her from behind. This usually occurs at High School dances or at the club.
I was grinding up on her but it soon turned into the Hair-lem Shake when her curls were half way down my throat.
by Jay Danger March 2, 2008
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i will kayden lemming lim heng yi sai bai di bo bored smashing edition on yo lemming uwu
by KLLHYSBDBBSED+ April 22, 2021
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