a word said when something is nostalgic, equal to saying "I remember that" or "Those were the good old days."
*walking down the cereal aisle*
"oh I used to eat apple jacks every day when i was a kid, how natsukash"
"oh I used to eat apple jacks every day when i was a kid, how natsukash"
by nihonnoseito October 13, 2013
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