I saw this in a SpongeBob episode (That's no lady):
Ok. You're fired. If someone needs me, I'll be in my office for 20 years or so
What does that mean? That "so"?
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TL;DR; more or less 20 – Vishwa Sep 24 '19 at 5:09
That "or so" is an idiom that means the preceding phrase is not to be taken literally. It usually is a synonym for "more or less" or "approximately." But in this case, it more likely indicates an acknowledgement of hyperbole.
