The actual meaning of the word 'blow out' describes the act of letting someone down, or 'blowing out'. This is usually pre-arranged plans that have had the definite go-ahead from a group of people or friends. The act often occurs the day after making plans when one weak individual does the classic first signs of blowing out...turning their phone off.

They turn their phone off thinking that by doing this, all the others who are relying on this man will think it's some kind of rare phone problem and they just can't get through. The truth is far from it, everyone knows the blowout has sneakily turned his phone off. For this man is the blow out king. This man is Chris Singers.
Group "Who's up for Alton Towers tomorrow?"
Man 1, 2, 3, 4 "Yeah sounds good"
Singers "Yeah sounds good I'll come...pick up at 8am?"
Group "Yeah see you then, don't let us down Singers we need you for numbers"
Singers "Lads...come on..would I let you down?"

*Next Morning*
*Man 1, 2, 3 & 4 are waiting outside Singer's House*

Group "Ring, ring, ring, ring"
Singers tucked up in bed "Teee heee, I'm so glad I turned my phone off last night"
Group "Would you believe it...another blow out from the King"
Group *Shouting out the window* "TOOSSSERRR"
by Mr Stab Artist November 1, 2007
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A sex act where the male intentionally prematurely ejaculates.
I totally blew out in this chick last night, but at least it wasn't a forbidden Herman. inflected form of blow out
by Josh Hug December 5, 2009
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When your laying down getting head by your girlfriend and you wrap your legs around there head while they are deepthroating, and choke them out.
I gave my girl a blow out last night
by ponelope smith March 21, 2019
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A state of body and mind initiated with an overdose of the raver date rape drug GHB. Blow out symptoms include unconsciousness, twitching like an epileptic, moaning like a whore and / or waking up with lewd texta graffiti on skin.
"Haha Sonny's blown out again" she says, looking over at the twitching mass of panhead passed out in the corner.
by just another g whore February 9, 2004
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A less abrasive, somewhat childlike way of telling someone to fuck off.
While driving my five-year-old to school, I resisted the temptation to flip the bird; instead I calmly leaned out the window and inquired, “why don’t you blow it out your hi-ho?”
by Dr Bunnygirl July 7, 2019
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When a girl orgasms so forcefully that the hydraulic pressure of her ejaculations renders you unable to maintain penetration. The girl herself is a gusher.
I would have stayed over, but when she got off we had a blow-out which knocked me to the floor. So I just put on my pants and left.
by Jickety March 20, 2008
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When you either fart, shart or shit and you blow your intestines out whilst doing so.
Person 1: ‘What do you think is the worst way to die?’
Person 2: ‘A Blow-out.
by Nintendo Portable Device December 29, 2018
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