to win by a large score (english slang)
"Did the Flames win?" "Ya, 11-2. It was a blowout."
by VAKI5 May 9, 2005
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The expelsion of tissue from the back of a piercing if you are gauging too quickly. The tissue will "blow out" the back of the hole and heal in a lump, causing uneven stretching, tearing or other problems.
While pushing the taper too hard, I managed to blowout my right earlobe.
by Denis Baldwin February 3, 2004
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(OIL INDUSTRY) a disaster consisting of a rupture of the pipe carrying oil away from a wellhead. Basically, when oil coming out of the ground through an oil well is released into the open air, or pours into the ocean.

In 1991, after Iraq's invasion of Kuwait was repulsed by the US-led coalition, the retreating Iraqi forces used incendiary explosives to blast open and ignite the streams of crude oil coming from Kuwaiti wells. This was the largest mass blowout in industry history.
The Deepwater Horizon blowout is incorrectly called a "spill" by many news outlets. It is not a spill, it is a blowout.

Oil wells, particularly those drilled underwater, are required to have a functioning blowout preventer. The one of the Deepwater Horizon was made by Halliburton and was defective.
by Primus Intra Pares July 15, 2010
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a hairstyle that is spikey all voer the head with short to medium spikes with short or shaven side burns which are done ususally like a tape up is done-the hairstyl was amde popular by the gotti boys from teh A&E show "growing up gotti"
The gotti boys' hairstyle is called a blowout.
by ThatGuy0401 October 25, 2006
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A massive attack of the shits in which ones asshole refuses to close.
After eating 8 tacos he had a blowout
by Xtina March 24, 2005
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Similar to ass blasting.
Diarrhea that swiftly flows from the anus causing a fire-y feeling.
Never fun.
Reasons to never consume food from places such as panda espress, leann chin or any "asian" buffet in america.
It sucks to have blowouts at work.
I was so sick and having blowouts all day.
My butt hurts from that blowout.
by PineappleJuice February 21, 2015
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When someone is shitface trying to puke in the toilet and ends up blowing runny turds out of their bung hole into a molasses mess.
While James was in college, some girl had a blowout in their bathroom and spewed poopies all over the place.
by mr. hankey August 6, 2004
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