Sonic 

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

Sonic by Dubiks January 8, 2019

sonic 

adjective used to describe attractive female body parts, particularly mamalian protruberences/

That chick has sonic tits.

sonic by ponytrekker August 18, 2004

sonic 

A gay restaurant where they have sonic burgers which are really processed hedgehog meat. it is also the place where the LOSERZ in their roller skates roll to your car and give you food because you're to fucking lazy to get the food yourself. fag

dude #1: LETS GO TO SONIC

dude #2: dude how the fuck do you go to a hedgehog

dude #1: BUT ITS A RESTAURANT WITH SONIC BURGERS

dude #2: OMG LETS GO

sonic by Evilrainbow September 2, 2012

sonic 

to be stoked, excited, and really happy, kinda like the feeling you get when dancing at a club kinda like crunk but more towards the emotion

oi im sonic mate, fully sonic
lets get sonic

sonic by some_bling August 7, 2007

sonic 

When a guy is sucking on his own penis and he is rolled over forward repeatedly as if he were sonic the hedgehog.

Jason always wants to just sit in his room and suck his penis so his wife would sonic him out the door and all the way to work

sonic by lovestosplooge24 May 11, 2014

sonic 

a gay blue hedgehog that was made by sega, that was thought to have a chance to be a deacent rival aginst super mario. lately sonic games have been continuosly been made so sonic has new powers and new friends because the idea of a blue hedgehog running around is old and boring.

Bob: Hey dude look at this new sonic game
Edd: if its sonic its gotta be really bad
Bob: And why so?
Edd: Sonic was a dumb sega idea that was made so sega had a chance agianst nintendo's Super Mario and all he can do is run fast and and do a spinning jump
Edd: Super Mario is way better
Bob: Your right, sonic is sooooo gay

sonic by 2Ninja4U August 28, 2009

Sonic 

A franchise that went downhill since it first hit the market.

Sonic1 -> Sonic 3D -> Sonic 06

Sonic by SpartanBob July 4, 2009