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1.
nei
not enough information
Sally: I went streaking yesterday.
Billy: *waits for her to go into detail, etc.*
Sally: tmi?
Billy: no, nei!
by Jeremiah12 July 31, 2007
 
2.
nei
Old fashioned Cantonese for "you". Often heard in Cantopop songs and operas. Most speakers these days(especially in Hong Kong) pronounce the word lei.
Äã†þÀÏĸÎҌŅø㗎!
Nei ge mou lou ngo diu jo gaa!
by Hoody88 October 03, 2007
 
3.
NEI
a word which is said to people who try too hard to be funny or try to hard when insulting people
guy1 your so supid

guy2 not as supid as you

guy1 neiiiiiiiiiiiiiiiii
by rolph February 28, 2007