Possible Clues:

• Former South Korean president ___ Tae-woo
• South Korea's ___ Tae Woo
• South Korea's -- Tae Woo
• "Ruh-___!" (Scooby-Doo gulp)
• 'Ruh-___!' (Scooby-Doo gulp)
• "Ruh-___!" (Scooby-Doo phrase)
• 'Ruh-___!' (Scooby-Doo phrase)
• 'Ruh-___!' (Scooby-Doo line)
• 'Ruh ___!' (Scooby-Doo cry)
• Former South Korean president -- Tae Woo