$0

stands for the first argument in Perl, and is the name of the script file.

unlink $0;

this line at the end in a perl script would remove the script file after its been executed.

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=0=

an annoying face commonly used by asians on msn.
Usually means "wtf". or "im so sick of you".

can also be used multiple times to exaggerate the feeling

Sherry: wtf =0=0==0=

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0=)

Alternative to the (a) emoticon, a smiley with an halo. It represents an angel and can be used in situations where innocence is real or simulated.

Friend: You tottaly cheated on her!!!
You: 0=)

0⁰

Still a mystery, is it 0 or 1?, Or even ∞?
Literally the same as 0×0

Person: what's 0⁰?
Person 2: "Error! Brain.exe has stopped working!"

0

The most mysterious and complex number. Basically zero is nothing and something at the same time. Then less than zero is written -1 this totally contradicts the whole number.

The number 0 exists and then yet it represents that something doesn't exist!

^0^

Shittiest emoticon I have had the misfortune to behold.

<FuKuJiGgA> ^0^ My mouth stretches above my eyes!

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'0'

Surprised

It is used from Koreans.

CWP says: really??'0'

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