Why do guys say a girl has a big ass when she has no ass?

Anonymous
I see a lot of guys who check out a girl and go wow she's got a big ass when she doesn't and it's not just one girl it's a lot of them that they say that about. If the girl has a big ass I understand that but when she has a flat ass or a really tiny fit one their like she's got a big ass when they don't. Why do guys say this? To me a big ass is like JLo, Kim K and so on.
Why do guys say a girl has a big ass when she has no ass?
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