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1.
A person of Asian descent who is caught in the act of sneaking.
When an Asian is sneaking up on you, you say "hey you're being a snasian!"
by Monica McCoin October 18, 2007
 
2.
A person of Asian descent who resembles Snape from the Harry Potter series, but Asian.
Wow! look at that Asian guy by the bags, he must be a Snasian!
by Psuedo nym November 01, 2009