To stick out like a sore thumb
Get out of these clothes. You’re sticking out like a sore thumb.

I understand sticking out as being striking somebody's eye, and sore thumb as a thumb that's sore. Is it an idiom?

Question

To stick out like a sore thumb
Get out of these clothes. You’re sticking out like a sore thumb.

I understand sticking out as being striking somebody's eye, and sore thumb as a thumb that's sore. Is it an idiom?

Answer

Here . "You’re sticking out like a sore thumb" means that the clothes are not fashionable or are too  different from what other people are wearing..

Answer

Yes it was a idiomatic expression means "to be easily noticed as different"  

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