What's my name?

Luke (age 3 1/2) - "No, she's Annabella Victoria Robbins!"
Me - "Yes, that's her full name. What's yours?"
Luke - "Lukey!"
Me - "No, your full name, like 'Sophie Leigh Robbins' is Sophie's."
Luke - "Lukey! L-U-K-E!!!"
Me - "No, your middle name as well. Just like 'Lillian Rayne' is Lily's."
Luke - "Oh. Boogerface. Lukey Boogerface."