To get high
Now people usually use it as saying cool or tight
Lets shibby
That shits shibby
by emily June 1, 2004
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When someone offers you food, this is the response to indicate, "fuck yeah I'd like some, but only if you're not planning on eating it."

Also can be used as a request, as in, "Shibby on those nachos!"
"Hey dude, you want some nachos?"
"Shibby!"
"Sweet because I can't eat any more."

or
"Shibby on those cupcakes?"
"Yeah man, help yourself"
by Spiderhouse March 19, 2009
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shibby means cool, hot, horny, cool, hot, horny, weed, dope, bong
by Bluntman April 19, 2003
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a word meaning nearly the same as 'sweet, cool, hot, amazing, dank etc etc...' this was first used in dude wheres my car. used to describe anything. thats right, anything. can often be succeeded by "low five!" (meaning a high-five, but near your waist) and can also be preceded by "dood!" (see d00d.)
person: "yeah i totally hooked up with ashton kutcher last night!"
friend: "dude, SHIBBY!"
person: "low five!"

person: "ahh, those shoes are mad SHIBBY!"
friend: "yeah i know right?!"

by codename_lily May 26, 2008
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A punk rock band from England -

Also a word used for totla awesomeness
Shibby are so Shibby

Thats f**king Shibby dude
by Sean from the band Shibby January 4, 2004
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