N'teenth - N'teenth is when something is so common it feels like it's b

N'teenth is when something is so common it feels like it's been around since the beginning of time.

That same joke at every party? It's the N'teenth of my life.

This same song plays every time I walk in. It's the N'teenth of my ears.

My brother says the same thing every day. It's the N'teenth of my sanity.