Idiom of the Day: stick out like a sore thumb / stand out like a sore thumb

Meaning:
If someone sticks out like a sore thumb, or stands out like a sore thumb, everyone notices them because they're not the same as the people around them.

For example:
Kenny stuck out like a sore thumb at the party. He was the only person wearing a suit and a tie.

When I was in the Nigerian countryside I stood out like a sore thumb. I was the only white person around.