I think it's a play on words. Einzigartig means one-of-a-kind, unique. And einzig means solely, only. Nicht means not. And artig means well behaved. So maybe someone was making a joke about you not being unique, by saying you were the only one that wasn't well behaved?
Depending on context, artig can be translated asadjectivepolitecourteouswell-behavedgoodsuffix (-artig)-esque-liketype
Paul Einzig died in 1973.
Paul Einzig was born in 1897.
Anders Artig - 2002 is rated/received certificates of: Germany:o.Al.
nicht is not in english
Spring' nicht (full springe nicht) means don't jump
Weiss nicht translates as don't know.
Nicht Schlecht means "not bad"
sündigt nicht = don't sin
Ich will nicht translates as I don't want to.
"That is not" is "das ist nicht" in English.
Ich hörte nicht translates as I didn't hear.