The woman on the sideline ready to jump in the sheets during the week that your wife or girlfriend is on the rag. Similar to a Sancha or the other woman.
Man my girl's ragging again. Time to hit up the Redshirt girlfriend.
by HOLEEFUKS October 1, 2015
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When a parent (usually the father) will hold back their child from starting kindergarten for a year solely for the belief that an extra year of physical development will pay off athletically once the child is in high school ten years later.
That kid is in 1st grade but he should be in 9nd. He is a kindergarten redshirt as his dad thinks he will be a big football star in high school with that extra year to grow.
by The Sports Mechanic February 8, 2013
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A redshirt is an expendable character on a show. They are best known for dieing on Star Trek.

Forever is well forever.

So together they are:
Expendable for a f****** long time!
Mike:You know that one guy?

Phil:No.

Mike:Me neither, he was a Redshirt.

Phil:Redshirt Forever?

Mike:Forever.
by Brother of Slang August 6, 2008
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A thai (Thailand) person that supports the political party "United Front for Democracy Against Dictatorship (UDD)"

Generally from the north of Thailand and usually less finical than those from the south of Thailand

The UDD is composed of mostly rural masses from Northeast (Isan) and North Thailand, of urban lower classes from Bangkok and of some intellectuals. Although the movement seems to receive support from former Prime Minister in exile Thaksin Shinawatra, not all UDD members support the deposed Prime Minister
Q What political party do you support

A i support the redshirts
by keepitrealthailand January 23, 2014
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