redshift 

The greatest background character in underground internet history, from hacking to writing many parts of the anarchist cookbook.

"Holy shit, is that redshift?!?"

redshift by Clay May 9, 2004

Redshift 

When an State, County, Or country becomes Increasingly conservative after a Long Period Of Liberal Majority.

Man, America Is going through a serious redshift right now, am i right?

Redshift by The Spider Is a Lie. April 15, 2019

redshirt virgin 

You're experienced in sex but haven't "taken any hits," as in, you haven't gotten any sexually transmitted diseases.

You're a redshirt virgin, you're a sophmore but you haven't taken any hits, you sat out your freshman year.

redshirt virgin by WilliamIIIofOrange April 22, 2014

Red Shift 

The reddening or decrease in frequency of light from distant galaxies due to the Doppler effect, indicating that they are moving away from us. The red shift can also take place via expansion of empty space, as in the expanding universe. The opposite of blue shift.

Most galaxies are red shifted, this tells us that our universe is expanding.

Red Shift by OneBadAsp October 21, 2006

Redshirt boyfriend 

The fella that your girlfriend keeps around in waiting as a back-up to you. Similar to a Sancho, however a redshirt boyfriend may or may not have had relations with your girlfriend while you were dating.

Many times a soon-to-be Ex-boyfriend has met his replacement before realizing his doomed fate.

etymology: a Redshirt Freshman is an american college football term for an athlete who practices with the team, but sees little game time in order save a year of his eligibility to play for his team at a later date.

No one was really surprised that John and Sally broke up. I guess Sally will probably be spending more time with that dude, David. He's been her Redshirt Boyfriend for a while now.

I think Cindy is going to break up with me. I think she has a Redshirt boyfriend

Redshirt boyfriend by The Mahatma December 17, 2008

Redshirt 

The person most likely to die first in any TV show, or film, regardless of what colour sweater they're wearing.

Taken from Star Trek the Original Series, where the security guards wore red, one always 'beamed down' from the spaceship to planets on exploratory missions and always died first. Always.
Don't ever wear a red shirt on a space mission!

"Ahhh look at the Redshirt, he's gonna get it first"
"Nahh, the blonde'll die first, they always do in horror movies".

Redshirt by nyet_da April 14, 2010

Redshirt Girlfriend 

1. A girl aspiring to become your girlfriend.

2. The Girl that a guy keeps around in waiting as a back-up to his current girlfriend. Similar to a Sancha or the other woman, however calling a girl a redshirt girlfriend does not neccessarily imply that she has had relations with the guy while he was with the previous girlfriend.

etymology: a Redshirt Freshman is an american college football term for an athlete who practices with the team, but sees little game time in order save a year of eligibility to play for his team at a later date.

Definition 1- Man, that girl Kelly is all over you dude. I think she is your Redshirt girlfriend.

No one knew why Billy dropped his girlfriend Sally until everyone found out about his Redshirt Girlfriend, Gloria.

Redshirt Girlfriend by The Mahatma December 26, 2008