When theres three guys and one girl and one guy hits it from the front,one guy hits it from the back,and one guy is getting head.
Yo were all gonna run a tri-rail on you
by PlHlIlL December 16, 2007
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Commonly refers to the three bags of milk offered at local grocery stores and convenience stores alike, or, any product offering that comes in a 3-bag pack.

Alternatively, the act of getting teabagged by one who is born with three testicles, or getting tea-bagged by 3 people at the same time.
India: "Alfredo, pick up some milk on your way home."
Alfredo: "Sure, a carton or tri-bagger?"
India: "Definitely tri-bagger."

Alternative:
Kid with 3 balls: "I just tri-bagged your mom"
by Amarci_ano July 28, 2010
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the most down to earth sorority with the prettiest girls on campus. tri-sigma sorority may seem like "girls next door" but don't be fooled by their pretty faces...because when they party these girls can get down. they are ridiculously sexy and every girl wants to be a tri-sigma compared to any other sorority like theta or omega.

carrie underwood, the multi-platinum selling record artist is also a sister of tri-sigma.
Guy 1: Yoooo who's that girl?

Guy 2: she's that girl in tri-sigma, you don't have a chance so don't bother

Guy 1: :(
by TalentMrRipley July 2, 2010
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A phrase, combining two literal words, Tried (an action in which someone has previously attempted to complete or has completed), and True (something that is seen as valid, either by logical and/or scientific validation, or validated by one's own opinions and/or beliefs and experiences).

If one combines these two words into a phrase, it means that the action/scenario that they are talking about has been validated as correct.

It is typically used to describe something that can be positive and beneficial to one's gain or well being.

It can also be generally used during periods of excitement, success, prosperity, and positive acknowledgement.
Person 1: You know you don't necessarily need a tuner to tune your guitar, right? As long as you have the biggest string to where you want it, you can use respective frets onward to accurately tune the rest of your strings.
Person 2: Wow, really? So I just wasted 20$ on this fuckin' piece of plastic? Damn.
Person 1: Tried and True, baby. Fuck tuners.
Person 2: Must be true, I've never seen you use one, but somehow your shit still sounds good.

Person A: None of the weedmen in this town so far have a scale, or so they say. I'm pretty sure I'm getting low-balled. Fuck dude.
Person B: How long you been here? My man Tim's Tried and True, always weighs .2 over on the dot. I call him Triple-T. He doesn't set up base on the street, he's one of the more reserved and lesser known guys in town. I'll set you guys up if you want.
Person A: Thanks man. Finally, something true, shiiiit.

Person Y: Fuck dude, Monkey Bombs just saved my fuckin' ass man, these Z's almost just had me RIP!
Person Z: Tried and True for sure baby! Ha! Don't stop runnin' though they still spawnin'!
Person Y: True true!!!
by TRWoof June 1, 2018
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The watching of three separate trilogies in a marathon-style manner. Usually done on a scheduled date with a group of friends and a large amount of caffeine and snacks. No series can exceed 3 movies (Can't watch all six Star Wars and the Back to the Future films). They must be at a 3/3/3 Ratio.

Pronounced like "Tripple-Trilogy" without the "pple"
Dude, lets do a Tri-trilogy this weekend! Bring the Dew!
by KyrakThePoet July 18, 2010
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Have you seen Napoleon Dynamite? This is the Tri-Cities in a snap-shot, however, we were blessed with better clothes. Tri-Cities, Washington is comprised of three small towns: Kennewick, Richland, and Pasco. Kennewick is known as the town with a low crime rate, Pasco as the one with the barrios however also housing the richest of the rich along the Columbia River, and Richland is there in the middle (reg. crime, nicer houses than Kennewick). However the most interesting part about this little city is the 3 basic job categories: Illegal Mexican immigrant/druggie, Farmer, or Government worker(the Tri-Cities has one of the largest rates of PhD's per capita in WA). Not exactly Tiny-Town, U.S.A. considering that during the Cold War the Hanford Nuclear Reservation made (and managed to spill most of) the Plutonium used to manufacture nuclear weaponry. We don't need flash lights since the berries along the river shine with a lime green radioactive light. Not to be totally negative, I'd have to say that the farmers raise us a BEAUTIFUL crop of teenage boys. At Clearwater and Columbia Center Bldv. is our local skyscraper, topping a monumentous 4 stories. Referred to commonly as "The Flash Cube", this building resembles an olden-days camera flash cube. But possibly my favorite tourism site, is our dinosaur population. Out in a field in Pasco, lives out resident Brachiosaurus. Towering over the small rural road like a scarecrow over the wheat-feilds and pig sties of the area. Granted, this dino is just plastic, but honestly, how many towns can boast they they have a 10foot "scare-crow"? Normal little town? I think not.
The Tri-Cities...(insert line from Napoleon Dynamite here)
by Adrie May 19, 2006
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When a string of bad luck bring you three life changing elements at once.
I've survived my tri-fuckta of bad luck!
by jodiegirl37 August 1, 2011
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