Knock Knock Cartoon Illustration - Free Vector Graphic for Humor & Greetings #3295222 (License: Personal Use)

This high-contrast line-art image features a clenched fist mid-knock, emerging from a sleeve, surrounded by jagged explosion lines to emphasize impact. The stylized “KNOCK KNOCK” text appears twice in bold, slanted font above the fist, evoking classic comic book sound effects. The minimalist monochrome design makes it versatile for print or digital use.

Commonly used in humor websites, joke pages, educational materials about greetings, or as clipart for greeting cards and social media posts; matches user intent for lighthearted, attention-grabbing visual metaphors of arrival, interruption, or surprise.