What do you call a friendly noise? A sound wave.
Friendly Noise
Categories
Explanation
Experiment
Explain Bear
Listen up, buttercup. This joke is playing on words. A "sound wave" is what you call sound when it moves like ripples in water. But it also sounds like you're saying "sound, wave" as in "I sound friendly, wave to me". See? You're not as dumb as you look!