1) Prase used whilst moving one's eyes from side to side in a shifty fashion, often to indicate the phrase beforehand was a lie or meant sarcastically.

2) Based upon the shortcut for an MSN emoticon.

"James you're very good at guitar... Shifty1"

"Nat doesn't drink or smoke! Shifty1"

MD: "Did you rape my Papus??"
Charlie: "No of course not! Shifty1..."
by Charlie Dimitriadis & MD Nolan October 25, 2006
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