K - Day - A K-day is when someone has lived 1000 days, and that’s like

A K-day is when someone has lived 1000 days, and that’s like being 3 years old but with extra math and a party that no one asked for.

My cousin had her 13th K-day and cried because she had to do math problems.

My brother said, 'I don’t care about K-days. I care about pizza.'

My dog had a K-day. I threw a party. He ate the cake.