Possible Clues:

• At-a-loss utterance
• Steak- — (frozen beef brand)
• Hesitant murmur
• "Lemme think for a moment..."
• 'I ... don't know how to answer that'
• [I'm thinking]
• Steak- -- (brand of thinly sliced frozen beef)
• Utterance after being thrown for a loop
• Steak- -- (frozen beef brand)
• '...'