Stick out like a sore thumb

The phrase "stick out like a sore thumb" is an idiomatic expression used to describe someone or something that is easily noticeable or stands out conspicuously from its surroundings, usually due to being different, unusual, or out of place. It implies that the person or object is highly noticeable and attracts attention in a way that is awkward, obvious, or incongruous. The comparison to a sore thumb suggests that the person or object is as noticeable and uncomfortable as a thumb that is swollen or injured.