No-op definitions

(NO OPeration) An instruction that does nothing but hold the place for a future machine instruction or fill up the space of a very large instruction word (VLIW). See VLIW. See also never execute bit.
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(computing) An instruction or operation that has no significant effect.
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Something that has no significant effect.

Which makes me think Omegle might be swarming with no-op bots.

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Origin of no-op

No operation (NOP), common assembly language instruction.