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.

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.

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.

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.

Melbourne, Australia slang for a GHB/GBL (juice) overdose. Often comes with involuntary sleep/passing out for hours, involuntary movements, sex with anythng or anyone, extreme horniness, moaning and groaning, dangerous driving and dancing like a fuckhead whilst touching oneself. The person "blowing out" will be unable to comprehend or understand you telling them to "calm down" or "stop it" and will continue to blow out until he GHB effects wear off.

haircut where the side burns and back is faded out...staten island guidos

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.