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)

Commonly used in text messages or social media as a short form for Very Sound Advice.

Release Candidate, part of "Program release cycle"
following "Beta" stage and followed by "Gold" stage
Term in used software development

Referring to Radio Control planes, cars, trucks and boats.

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"

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.

Abbreviation for Review Count.

Used for story posting sites such as FanFiction, FictionPress and LiveJournal.