a long extinct dinosaur related to the tyrannosaurus rex and the blundering counter-strike noob.

used to express extreme pleasure or humor at something.

related in morphology to roflcopter, rofliron, and lollerskates.
eric: lmaosaurus! can you believe how stupid those slashdotters are?!

tommy: roflcopter, theyre the biggest noobz ever!

eric: lollerskates, ur rite man

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