Research Chemical.

A phenethylamine or a tryptamine that has psychedelic effects. First brought to the attention of the public by Alexander Shulgin in his books TiKAL and PiKAL. (Tryptamines I Have Know And Loved and Phenethylamines I Have Known And Loved)
by jtryptamine November 12, 2003
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Raging Cunt Shannon.

A syndrome that causes moodiness/ bitchyness. Possible causes include having the name Shannon and possible lack of sex for a very long time.

Everyone left the room because RCS was there

They lost because RCS played
by Samre September 12, 2019
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Release Candidate, part of "Program release cycle"
following "Beta" stage and followed by "Gold" stage
Term in used software development
powarc1000RC1.exe - Powerarchiver
by ingver November 11, 2007
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Referring to Radio Control planes, cars, trucks and boats.
by HolmWrecker April 1, 2003
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1) Short for Runecrafting in the MMORPG Runescape.
2) One of the most horrid, terrible, and overall deadly slow skill in Runescape, but also know for its quick money making.
1) Person1: Clay is gona go for 99 RC. Person 2: Dude he is crazy!
by 767 fs pilot July 31, 2009
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Abbreviation for Review Count.

Used for story posting sites such as FanFiction, FictionPress and LiveJournal.
I'll update when my RC reaches 50.
by lilsaresare November 8, 2010
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Rc is a short form of retarded cunts.

Most people given this nickname are dickheads or either school bully
Or to say "RETARDED CUNT" but ur grandma is infront of you.

sometimes RC can also mean "Reality Check"
Molly: Dude Alec is such an dickhead nowadays
Joshua: I know right bruv he is a rc
by Some weird stranger January 3, 2021
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