It originated from the term "I'll be back in a flash", but with the word "flash" replaced with "flask". It gives a double meaning now, where you can say "I'll be back soon" and also "I'll be back inside an alcohol containing vessel".
"Hey, dude, I'm gonna go pick up some more ammunition at K-mart. I'll be back in a flask."
by lerppu July 26, 2004
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code for when you want to say that girl got a nice ass
Jamie: dude did you see Michela she was a round bottomed flask.
Cristian: i know but what about lianne she was a round bottomed flask too.
Jamie: ye i agree
Wayne:you know personality matter too right
everyone: shut up
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On November 13th at 12 am the games starts, whoever gets the most kills with their hydro flask wins
Hey sam, guess what tomorrow is
What's tomorrow?
NATIONAL HYDRO FLASK DAY... you better be prepared
by Will 🤫 October 2, 2019
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November 2nd is the day when you can yeet the hydro flasks
National yeet hydro flask day Yeet the hydroflasks
by No hydroflasks October 30, 2019
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When a man peas in a water flask and then shoves it up his ass. Then he plays the flute really hard and bubbles the piss. The piss drain into his stomach and he throws up everywhere and shits the flask out which covers him in piss and shit. He then mixes all of his poop,piss, and vomit and Diet Coke into the flask and drinks it, causing his stomach to rupture and bleed out and die. You also have to do this in northern Tennessee
Guy:you here about Connor
Guy 2: yeah I heard, he did the Northern Tennessee water flask special
Miacheal jorden: jumpsot
by Meatwad60 January 26, 2022
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There's a lot of VSCO girl references so I'm just going to add a serious one to this page.

It's a good water bottle, designed to keep your water cold(or warm for you heathens out there)when you need it most. At an average of 40 to 50 or so dollars, it's a high asking price, but it is a double layer insulation so depending on which bottle, it can be a lot of bang for your buck. Yes, yes, I know that it's the weapon of choice for VSCO girls so BUY AT YOUR OWN RISK.
Bob: *opens bottle after soccer practice* Dammit my water is warm!
Pete: You should buy a Hydro Flask, it's really good at keeping your water cold.
Bob: Stfu do I look like a VSCO girl?
by Fucboi carti September 26, 2019
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A gay water-bottle
Hydro Flasksksksksksksksksk
by Logethin Logworth December 22, 2020
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