A constant wall of sound, or an extremely heavy, thick or fast sound.
Drone.
that guitar is sonic.
by av July 31, 2003
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Sonic is the only thing powerful enough to detroy anything in the universe. Even the DragonBall Z charactors in his Hyperform. Although Sega & Sonicteam has turned into a craphole company after the death of Dreamcast and made him hell weak. Also Note Yuji Naka didn't design Sonic the Hedgehog, Nauto Oshima did!

He worked on Sonic CD and Sonic Adventure 1. And now hes working on the next Gen Sonic game on PS3 and Xbox 360.

If you wish to see full the power of Sonic you should check out Sonics Quest for Power 3 on newgrounds under Sonic spoofs.
by Michael aka SaviourDC January 1, 2006
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Sonic is a hedgehog in a game.
It is also used in cinos which is Sonic spelled backwards.
Most commonly found as the name Cinos11
Cinos11 or that guy sonic11 backwards the cool person is online!
by coolpersontotherescuce April 25, 2010
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A derogatory nickname for someone who cums too fast while having sex.
Hey Sonic, how was your sex with Jenny last night, I bet it only lasted 30 seconds
by Dubiks January 9, 2019
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Sonicism means; "The compulsion to seek praise or to brag".

It originated on the GameFaqs.com Australia and New Zealand social boards for a user named Sonic who posted pictures of himself that no one cared about.
"The fact that you keep posting those damn pictures of your self just shows your sonicism."
by Formalhaut October 4, 2007
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adjective used to describe attractive female body parts, particularly mamalian protruberences/
That chick has sonic tits.
by ponytrekker August 18, 2004
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