Papa Happy Birthday Airplane

Sonja sometimes says things out of the blue. Today, as we were all three laying on the bed for the afternoon nap, she mentions something about papa happy birthday airplane. She did have a verb there, I forget what it was. Hmmm, did Martin call her from California, and tell her to remind me that his birthday is coming up in two weeks, and what he wanted for his birthday? And in case I didn't get what she was saying, Sonja repeated something about papa happy birthday flugzig.