N'teenth - N'teenth is when you're so sick of something it's like you'r

N'teenth is when you're so sick of something it's like you're about to throw up from the annoyance.

This same joke at the party? It's the N'teenth of my existence.

My friend keeps sending me the same photo. It's the N'teenth of my life.

I've heard that song like 50 times. It's the N'teenth of my ears.