Whenever someone throws a huge fit or melts down in front of people due to a circumstance previously brought up.
"Steve just had an aneurysm"
"What over?"
"Someone said that he sucked at teaching.. not a good idea."
by Cheeseman23 April 4, 2015
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a permanent abnormal blood-filled dialation of a blood vessel resulting from disease of the vessel wall, A blood vessel weakness that causes bleeding in the brain or a bulging of the wall of an artery, vein, or wall of the heart.
When the teacher told the students about a very complicated hypothesis they all had an aneurysm.
by Mr. Biatch Owner! May 6, 2005
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One of Nirvana's most underrated songs. Found on both albums, Hormoaning and Incesticide, as well as the live album From The Muddy Banks OF The Wishkah, this song is a must have in any version you can find. Also listen to it on the numerous traders live albums, such as 'Suicide Solution?'.
Sample of Aneurysm lyrics:

Come on over and do the twist, uh-huh.
Overdo it and have a fit, uh-huh.
by Random Affiliate September 27, 2006
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Dialatation of an artery caused by weakening of its wall through disease.
"If I do that again, I'll have an aneurysm."
by DiiKaBaKa January 26, 2004
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Used in many different games when comitting suicide. Mostly used in UT2004.
Player had an aneurysm.
by Mr. Biatch Owner! May 6, 2005
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The act of ejaculating into your partner's mouth with such force and ferocity that the semen shoots up into her brain, causing blood vessels to burst.
I haven't been laid in two years, so when Becky gave me a blowjob, I gave her a jism aneurysm. Now I feel much better!
by Flantari September 30, 2006
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