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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a person who alters clothing
debbie was the alterator who was making my dress smaller.
by Chevvyfun March 05, 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 02, 2012
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A low-class nerd that stays on the internet 24/7 that plays mainly Minecraft. If you're an Alterations, you seriously need help.
"Hey Alterations?"
"Yea?"
"You play Minecraft!"
"I know, I play it 24/7..."
by AlterationsG August 21, 2018
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