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Pronounced "pipe". In a UNIX shell, it is used to redirect the standard output (stdout) of a command to the standard input (stdin) of the next.

ALso, in C, C++ and others, it is the symbol for the logical expression 'or'.

$ ls | grep e
^^^ outputs all entries in current directory that have the letter 'e'. Takes output of 'ls' and supplies that as the pattern grep looks for.

this || that
^^^ literally resolves to "this or that"

| by UmmAgummA July 28, 2005

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It seems to be quickly replacing <3 on facebook. As in, Love, or more specifically In Love With.

I am totally | Lindsay Lohan, even though she's a filthy girl, I've got magnums.

| by The_Pope_of_the_Universe May 27, 2007

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an annoying key on the keyboard.

guy 1: |o|
guy 2: wait, how the hell did u do that wit ur Ls?????

| by kcirzat February 23, 2010

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This is the ultimate form of "ok" (in the disdainful sense), where the letter "k" doesn't even suffice how much you don't give two damns. "|" is simply the letter K but without the two strokes (chevron?) on the right.

Used only when 'k' doesn't help cut it.

Example:

Some random e-girl on kik: Hey handsome, wanna see videos of me while I play with myself?
Me: No
E-girl: But it's only $60, and if you could reeeeally spoil me some more, I'll even throw in some close up pics😘😜😋
Me: |

Expanding brain meme example:

Okay - No brain activity
Ok - Mild brain activity
K - Huge brain activity
| - Brain literally transcends into a higher level of consciousness

| by Mary Mary Quite The Contrarian July 31, 2020

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THE SAME FUCKING THING AS AN L

I am a |esbian

| by not_________________me October 26, 2020

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Used for adding the most physiologically extreme emphasis to a sentence. It is many times more intense than an exclamation point. By adding this at the end of a sentence you are implying that you are exclaiming so intensely that you have destroyed your vocal chords. Two or more of these at the end of a sentence is unnecessary as that would mean you have destroyed two or more sets of vocal chords which is not possible.

I just won the lottery|

OMG|

| by defried February 8, 2012

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horizontal line- has no real name, its used in h4xx0r talk for l or part a a letter like N

|\|(n), |337(leet), 1337(leet),

| by n00by Mc n00b n00b January 4, 2007