Well, usually an angry cartoon man shows it through exaggerated expressions. His eyebrows might be scrunched up, his teeth gritted, and maybe steam coming out of his ears. Also, his body language could be all tense and aggressive.
First, start with the shape of the head. Make it round or oval. Then, draw big, angry eyes with narrowed pupils and thick eyebrows. Add a frown or a scowl on the mouth. Finally, add some lines to show the wrinkles of anger.
An angry cartoon meme usually has exaggerated facial expressions, like wide-open eyes and a scowling mouth. Also, the colors might be bold and intense to convey the anger.
Well, start with a simple shape like a rectangle or oval. Then add sharp corners and lines to show the frown and gritted teeth. Use shading to give it depth and make it look angry.
Well, it could be that someone teased it or it faced some sort of obstacle that made it angry. Sometimes, in cartoons, characters get angry for all sorts of random reasons to add drama and fun to the story.
Often, when cartoon eyes are angry, it's to show a character's strong emotion. It could be because of something that happened in the story or to emphasize their personality. The choice of colors and shading can also contribute to that angry look.