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Simple, often secret, way of saying I Love You over text or chat, without being too forward
Goodnight! 123!
by *Sparkle*123 August 18, 2010
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4
used in web forums to denote a quote that they entirely agree with 100%. the term "you took the words right of my mouth" comes to mind.

however, because they forums disable spaming by requiring people to type at least 3 characters per post... 123 comes to mind
bob: anarchy sucks

jim : "bob : anarchy sucks"
123
by jaredong May 19, 2005
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5
the numerical version of "abc".
Which means, "simple"

it is often used as a term denoting the word "numbers" or referred to counting

123 is also the first thing that comes to my mind when I hear the anything related to numbers or maths.
Do you know 123?
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It's as simple as 123
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by Nick Karoshi August 04, 2011
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7
the number you call (in the uk anyway) for the talking clock that goes on and on...
At the third stroke the time sponsered by accurist will be....
by a man March 28, 2005
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