Repetitive Strain Injury.
The price you pay for over-indulging in a single form of entertainment.
"For goodness sake put down that mouse, Johnny! You'll give yourself RSI..."
by CougarSW2 November 19, 2004
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Research Science Institute. Insanely prestigious summer research program for rising high school seniors at MIT and CalTech. Practically impossible to gain admission.
RSI has the best of the best.
by nerdish January 2, 2005
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Remove Surgical Instruments

Originally used by surgeons nearing the end of a surgery, this expression has become a reminder not to leave important things behind.
"Don't forget to RSI before sewing her up."

Hotel sign: "Please RSI before you check out!"
by ElSombrero September 17, 2013
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An acronym for Rapid Sequence Induction, an emergency medical procedure sometimes performed by paramedics prior to intubation on conscience patients. It is essentially a rapid anesthetization.
EMT: Resps are 6 chief!
Medic: Alright, we need to intubate. Is he still conscious?
EMT: Partially
Medic: Go ahead and set up for an RSI
by pcbene December 24, 2007
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Why are you asking for medical advice from RSIs?

{random strangers on the internet}
by wle May 25, 2012
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Royal Sstein Institute

A global organisation of corruption, oppression and persecution. RSI has universal power over planet Earth. Ruled by the Sstein, who follows the Yllasic cult of forced religion.

RSI is enshrined in a total of 1,287,922 laws.
The RSI is closing in.

I have an opinion, unless it clashed with the RSI.
by RSI creator November 17, 2008
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RSi - a small band from the Belfast area in Northern Ireland.

Currently un-signed, but have a manager.

Could be described as Space Rock or progressive

Kid one : Hey dOOd. Heard of RSi?

Kid two : No but my older brother gets it all the time.
by mel2k7 January 23, 2007
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