It's a very strong and offensive statement, and should be avoided in most situations.
Here's why:
* Directness: The phrase is direct and blunt, leaving no room for interpretation.
* Negativity: It expresses intense dislike and disgust, focusing on a person's physical appearance.
* Insulting: It is a direct insult, likely to cause offense and anger.
It's important to remember that using such language can be hurtful and disrespectful. Instead of using such an offensive phrase, consider expressing your feelings in a more constructive and respectful way.