Possible Clues:

• Big __: Red Sox slugger's nickname
• "Ay ___"
• 'Ay ___'
• Nickname at Fenway
• David Ortiz
• Nickname of Red Sox slugger David Ortiz, Big ___
• David Ortiz's nickname
• Parental term of endearment, in Spain
• Big ___ (Fenway nickname)
• 'Big --' (nickname of baseball's David Ortiz)