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1. An act of random anonymous kindness and encouragement usually a gift or message
2. A person (or ninja) who does the above
3. vb to give a ninja angel
1. "I got a ninja angel yesterday! It made my day!"
2. "Thank you mysterious ninja angel! I love my chocolate!"
3. "Jane's been having a hard time recently. Do you think we should ninja angel her?"
by absieb March 13, 2011
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