crash out

Chemist/biologist slang for "precipitate" (as in "to precipitate from solution"). Can be used as a verb or a noun. Like most technical slang, it is used more often in the field than the formal term.

Occasionally mixed up with the different but related term "salt out".
n. That flask should be kept on heat until all the reactants are in to avoid premature crash out.

v. If you don't drop in more DMSO when you make the diluted solution, your compound's going to crash out.

v. "Salting out" a protein is increasing salt concentration in a solution until the desired protein crashes out.
by IWA December 05, 2007
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crash out

Verb meaning to go to sleep.

aka

hit the sack
Tired Guy: Fuck I'm tired, I'm gonna crash out.
by Dr4T7 February 17, 2006
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crashed out

1) To be laying in a state of relaxation, especially on a piece of furniture.

2) To be passed out, especially on the floor.
Q: "What are you doing?"
A: "Nothing, I'm just crashed out on the couch playing Halo."

Q: "Where's Luke."
A: "Fool's crashed out on the floor in the bathroom."
by JamesMonet January 26, 2006
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crash out

following an ePCR, sometimes the emulsions will break earlier than expected, like after the first isopropanol wash
did your beads crash out?
by SaraLV June 28, 2007
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crash-out-city

When everyone goes to sleep;
When the party dies;
When the party-starters are fucked;

When you're the only person with energy left to keep drinking before sunrise and you need an insulting term to describe all your weak pussy-ass friends;

Possible origin,...I hate to say it but I think a Guns and Roses song (maybe because it puts you to sleep? ha ha!)
"Jeez everyone's too tired to go out...am I the only one who is pumped-up or what? It's nothin' but crash-out-city 'round here!";

"Holy shit looks like crash out city up 'n in here!" observes Zack of all the drunken passed out partied-out dudes all over the lounge floor, "yeah, nuthin' but..." replies Damian;

"Hey man I'm fucked, looks like I'm headin' for crash-out-city" Dams slurs to his friend, "What! fuck that, I told you when it comes to Twin Peaks I can stay up forever!" Zack barks out while drunkenly fumbling for the DVD case;

by Zack Bathory January 13, 2008
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Crashing out

Remainer term for leaving the EU without a deal.
Sky News: "Brussels is said to be operating on a "working hypothesis of no-deal" after accepting the prime minister "isn't bluffing" about crashing out of the bloc."
by MattSw August 06, 2019
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all crashed out

When you're are so black and exhausted that it isn't possible for you to be just all crunked out.
Man I was gonna go visit my cousin's house but he was all crashed out. Guess I'll just play naked twister to Justin Timberlake music.
by Steve March 16, 2004
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