Short for Mindless Self Indulgence, a acid-techno-rock band from NYC.
That MSI show kicked ass!
by orphic January 16, 2003
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Mindless Self Indulgence, the best band ever... calls their music "industrial-jungle-pussy-punk" fucking crazy beasts. main singer once pulled his dick out of his pants and lit it on fire during a concert.
dude... MSI FUCKING OWNS!!
by The Ownage February 25, 2005
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Major Skill Issue. Common symptons inlcude having red-hair, saying people names in a high pitch, making unfunny 'joe mama' jokes and just not having it. Unfortunaly, this condition is contagious and if not caught immediately by your GP, it is often terminal.
Oh no, I think joe has msi.
by shuccerdeez September 9, 2023
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Micro Star International - A PC component maufacturer.
by S.Adam Q. February 23, 2003
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Short for "Massive Sexual Indulgence", basically means masturbating or having sex without an end in sight, regardless of physical condition. Usually enacted by people who are high on the effects of strong drugs such as Black Tar Heroin.
"Hey bro, you free this weekend?"
"Nah man, I'm doing MSI"
"Bro, you gotta stop, it's just not healthy for you"
by SuspiciousFlag September 9, 2019
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Stands for Mindless Selg indulgence. A great acid rock/techno/jungle band. Fucking INSANE live.
I almost died in the msi mosh pit last night.
by kevlin mchwitz March 26, 2004
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the best fucking band in the whole fucking world. members include Jimmy Urine on vox, Steve Righ? on guitar, Kitty on drums, and Lyn-z on bass a combination of almost every type of music except for country. mainly techno-metal type shit. maybe their most popular song is Bring The Pain my personal favorite of theirs is stupid mother fucker. faggot is also a great one. loved by most, including gabriel haynes and douglas nawoschik

dude, i went to and msi concert and was totally fucked by jimmy urine. ON STAGE!!!
by dougman77 August 8, 2006
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