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Can be used as a greeting instead of saying "hello".. or "hey". If someone says "enna" to you, it it customary to used the word "enna" at the start of every new sentance after the intial enna greeting.
Person A : "Enna"
Person B : "Enna"
Person A : "Enna wanna get a doner kebab"
Person B : "Enna..I cant be asked"
Person A : "Enna.. it's got good chilli sauce"
Person B : "Ok I'll see you there"
by Sanch K February 06, 2004
from the tamil "Enna di" ... current trends suggest this becoming a common greeting on the internet making a highly-acceptable substitute to the usual "hi".
Enna John Smith, wassup?
by N!K February 06, 2004
Enna can be used to replace the common English word "what", if used as a question.
"Guess what i did today?"
by Sanch K February 06, 2004