Create a funny sticker in meme style, isolated on transparent background, as if cut out of paper with a white outline. A man yelling into an old-fashioned telephone handset, holding it to his ear and shouting "ALLOOOOOO" with an exaggerated, furious expression, wide open mouth, bulging eyes, red face. The style is cartoonish, flat vector, like a sticker from a messaging app, bright expressive colors, high contrast, simple shapes, no text, only the character. The pose should be dynamic, funny, aggressive, and ridiculous. No background, only the character with a white outline.
