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End of semester celebrations that occur on the last day of classes and generally involve excessive and early morning drinking, denial about upcoming exams, puking and rallying, and the making of poor life decisions. Spring blowout is generally a larger ordeal, as the weather is conducive to outdoor drinking and slip and slide and seniors like to return to their freshmen dorms to give it a little toast. Like many great legacies, such as full-contact beer pong, this festivity had its beginnings at the College of William and Mary.
"Hey, we've got to find a freshmen to let us in to Yates dorm for spring blowout this year. The administration is hardcore about locking down all the freshmen halls so we can't work havoc."
by Sabzi April 09, 2008
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1. Melbourne/Australian slang for a GHB overdose. Can vary greatly in severity. Passing out uncontrollably and loss of motor skills are the most identifiable symptoms of a non-serious case. More serious cases involve vomitting and loud indecipherable yelping or yelling. Can result in death.
2. Someone that frequently overdoses on GHB.
1. Carl: Did you see that dude blowout outside.

Paul: Yeh. What an arsehole.
2. Frank: Have you spoken to Sam?

Sean: No, he's a filthy blowout.
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At William and Mary, this is the last day of classes each semester. Everyone suspiciously carries water bottles around all day and gets raging drunk and goes to classes. Teachers know everyone is drunk and usually lets class out early.

Spring blowout > Fall blowout
ex: "Dude I'm so siked the last real day of classes was today. Tomorrow is blowout so we won't learn anything anyway!"
by ontherighttrackbaby April 24, 2011
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Hair style of choice for the guido, it usually involves short/shaved sideburns and sides with a large amount of hair on the top, usually spiked so that the wearer looks like they've been electrocuted.
I saw what looked like a porcupine sitting on the headrest of that riced out mustang driving infront of me. Another guido with a blowout.
by The Sub March 10, 2005
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An uncontrolled, poorly contained and always catastrophic bowel movement. Usually the chuncky runs. So bad that even heavy pants can't hide the mess. Food poisoning or a very disagreeable meal are two main culprits for a blowout.
In line at the McDonalds:
Joe: "Oh Jesus, Oh..."
Mike: "What? What's wrong?"
Joe: "That toddler in front of us."
Mike: "Toddler? Oh my, fuck .. Oh the smell."
Joe: "Hey lady! Your little crotch dropping seems to have had a blowout."
by Jumpingrat August 25, 2006
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haircut where the side burns and back is faded out...staten island guidos
damn...why everybody here got the same cut
by doobalis December 08, 2003
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The most ridiculous looking haircut to ever be sported by white people. It's an extra long tape up that is gelled into spikes, making the hair look like an extra greasy afro. A required hairstyle to grind with the true sluts in ANY Long Island club. The most famous, and arguably the original, blow outs are worn by Carmine and John Gotti Agnello, stars of A&E's "Growing Up Gotti." For accessories to complete the look, see tape up.
Blow out: Yo i spent 45 minutes gellin my fuckin heaa bitch you betta suck my salsicc'
True Slut: Ok but yo betta take me to the tanning salon when were done cuz im stahtin to turn white again.
Blow out: Arite whateva the fuck you say you fuckin cunt slut.
True Slut: Hee hee hee, Vinnie you ah so funny.
Blow out: Dats right bitch, I know John Gotti now get in my G35 and suck my dick.
by Tony Rigatoni June 23, 2005
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