A demonym, used especially in internet based writing, used to indicate that someone or something is of the United States of America. This is contrasted with "American," which technically means someone or something belonging to North or South America, including such disparate places as Guyana, Mexico, and Canada.
Damaris, Ashley, and Yulisa are all Americans, but only Damaris is USian.
by ProudUSian March 15, 2011
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a resident of the United States
(Pronounced you-ess-ee-yen)
Tom is a USian, that yank.

Benji is a Non-USian, that Tommy.
by Forkman August 21, 2008
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1. Of or pertaining to the United States of America

2. A Citizen of the United States of America

A sometimes pejorative term coined in recent years on various internet discussion boards. Meant to resolve the ambiguous nature of the terms "North American," which could be taken to refer to Canada or the United States, and "American," which could be taken to refer to North America, South America, or the United States.
1. I'm not a fan of all of this USian war-mongering.

2. You'd never understand universal healthcare--you're a USian.
by Lucian March 15, 2005
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A term bigoted non-americans use online to make themselves feel superior to Americans, because using the word "American" is too scary for them.
"Didja see that post where they called Americans "USians"? What twats. Seppo Yank is right there.
by CorrectThis,Casul May 2, 2023
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/ju ʒ(ə)n, ju ʃ(ə)n/
A new word to replace "American", meaning
relating to or characteristic of the United States or its inhabitants.
1. a native or citizen of the United States.
2. the English language as it is used in the United States; American English.
This replacement is suggested because many think "American" should refer to the landmass known as the Americas, not the country, the United States of America.
"James is Canadian, not Usian."
"There were many Usian food products on the shelf, such as Hershey's chocolate and Cheeto's chips"
by space jet November 15, 2021
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Hot dogs and burgers are Usian foods
by FakePerson101 November 15, 2021
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