Top Definition
A ridiculously huge number. Bigger than the biggest thing you can imagine (and then some). Used only for the purposes of major exaggeration.
Nic: I went to the beach and there were like a nickillion people there!
Jo: Stop exaggerating, Nic. there were hardly one hundred.
by Elmwood_destroyer_of_words August 13, 2007
7 Words related to nickillion

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