A one-way rivalry is a rivalry where one of the participants is much more emotionally invested in the conflict. This state could arise if one of the parties (A) to the rivalry objectively outmatches the other (B) in significant way. The inferior party (B) will continue to value the prospect of winning, while (A) will shift focus toward other competitors that provide more of a challenge. Alternatively, (A) may simply have lost interest in the rivalry.

(B) may perceive their opponent (A) to be elitist or condescending if the one-way status of rivalry becomes clear. Conversely, (A) may consider (B) to be desperate or insecure.
1. In sports, the Mets-Yankees rivalry is a great example of a one-way rivalry. By virtue of their geographic proximity, some conflict between the teams is inevitable. However, the Yankees are widely acknowledged to be the more powerful of the two and find the Red Sox to be a more worthy opponent (though the Sox-Yankees has had elements of a one-way rivalry in the past).

2. Perhaps the most significant example in US society is the South's antagonism for the North. Many Southerners still bear great ill will toward the North for their victory in the Civil War and subsequent control during Reconstruction, some even believing that the North may be actively attempting to "keep them down". Actual antagonism from Northerners toward the South is generally limited to jokes about the Southern accent and the like.
by zedknee February 23, 2011
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A member of African american descent that will call all his buddies and himself a nigga , but when a Caucasian friend calls him a nigga , he gets down right upset ...and could lead to stepping and stunting
So last Friday everything was going great at the bar with me and Omod until Jason called him a nigga . Now he's in jail for assault , fucking one way nigga .
by DJ robanski October 14, 2016
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Someone who stops at mcdonalds for breakfast prior to showing up for work, and doesn't call his co-workers to see if they'd like something. Even though he knows that (1.) They will & (2.) they would be more than willing to pay them for said items.
Nick showed up with a tasty breakfast before work. He did not text or call anyone with his intentions. Now I have to sit here & watch him eat his Mcdonalds breakfast. That "one way bastard"
by blackbirdracing July 23, 2011
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Thanks, one way! Is a statement or response to one person that only thinks of themselves.
Person 1- I just took the last piece of pizza.

Person 2- Thanks, one way!
by Hankscolts June 25, 2011
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A person who has to have everything their way and puts other people down for having different taste.
Hey man you want to go see a concert tonight?

Who's playing?

Well it's sort of an electronic..

Let me STOP you right there that music is for liberal pussies and gays. It has nothing god fearing to do with it... Pantera? That's a band.

You're such a One Way Joe.
by moosir2u December 30, 2014
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Someone becomes a "One Way Mirror" when they are attempting to form a relationship with someone, but is the only one individual is interested in bonding. This leads to very one-sided relationships where one person knows a lot about the other, but it can't be said vice-versa.
Person 1 :Jack is being a total One Way Mirror, he won't leave me alone & keeps asking me all these questions. He knows so much about me, but I don't even know what classes he's taking.

Person 2: What a creep, can't he take a hint?
by blufrd April 30, 2021
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Refers to the sphincter muscle in the rectum. Usually refers to the out-going flow of the body of any material.
When drinking heavily on Spring break in Key West, your friends are heard to say "Don't let them puncture your one-way-valve!"
by draegerfrog March 10, 2005
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