What's a phrase you misinterpreted the meaning of for the longest time?

https://discuss.tchncs.de/post/29155606

What's a phrase you misinterpreted the meaning of for the longest time? - tchncs

I’ve seen people using “that’s what she said” in a very serious setting, as a way to say “good point/touché”. They had no idea it was from the Office.

Growing up I always wrote off “it’s always in the last place you look” as just another random thing adults loved to just say all the time.
On King of the Hill, Peggy says that in an episode and it always cracks me up, because she’s an idiot.
and whose the obvious winner there. Dale.