Listen to the sound clip Yabba-Dabba-Doo! from Hanna-Barbera Soundboard: Yabba-Dabba-Doo! Yabba-Dabba-Doo! This sound is from Hanna-Barbera Soundboard These are extremely crisp and clean sounds and immediately recognizable as being from Hanna-Barbera. It's worth just phoning someone and leaving them a sound effect message to make them laugh. Go to the full soundboardwith more sound clips Search