An alter is a pseudonym of an internet forum user's primary account.

An alter, as used as a secondary account, will often pen questionable messages that otherwise disrupt the community or break the forum rules.

The ancestry of the term is derived from "alternate", of which, is often shortened to just "alt".
Sarah writes her poems under an alter account.

Check his IP address and find out who's alter he is.
by Brinnie April 25, 2005
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An alter is a pseudonym of an internet message poster's primary account.

An alter, as used as a secondary account, will often pen questionable messages that otherwise disrupt the community or break the forum rules.

The ancestry of the term is derived from "alternate", of which, is often shortened to just "alt".
Jamie writes her poems under an alter account.

Check his IP address and find out who's alter he is.
by Brinnie April 25, 2005
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Liz's mind must be altered because fernando was right and she was wrong.
by bigbootynando November 30, 2011
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a person who alters clothing
debbie was the alterator who was making my dress smaller.
by Chevvyfun March 6, 2008
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When people think religion will solve all their problems
Kate: Religion is the best thing in the world babe

James: Is that alterism?

Kate: YOU HAVE NO RIGHT TO SPEAK ABOUT IT THAT WAY! OMG! BABE!
by New Scientists February 2, 2012
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This term / name is used by a horny individual
This guy is always sus 24/7
Might like men.
Wow, do you know alter?
Yeah hes always horny
by axyy November 16, 2021
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- someone you wish to be or prefer being under a usually different name
- someone more confident, comfortable who you want to become

-someone created by your imagination and speaks for you
by JNOPE December 9, 2015
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