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1.
One who is named James Byrne. Engages in shly, shneaky behaviour.
Me: My computer and family are missing!
Anonymous: It must be James "Shneaky" Byrne.
by Yankee Doodle Dandee November 21, 2011
 
2.
Verb. Engaging in acts that are similar or derived from the Los Angeles based lyricist SHNEAKY.
1. Do the SHNEAKY!
2. Look at you being all SHNEAKY!
by kidbrother October 29, 2013