LORELAI: And Ho-Ho’s fading, so I’m trying to buck him up, saying “Come on, Ho-Ho. Stay with me Ho-Ho,” and then all of a sudden he starts yelling, “Stop calling me Ho-Ho, it’s making me hungry!”
LUKE: Oh, hey, look, there goes Tommy Tune.
Thomas “Tommy” Tune (born 1939), actor, dancer, singer, theatre director, producer, and choreographer. Over the course of his career, he has won ten Tony Awards, the National Medal of Arts, and a star on the Hollywood Walk of Fame.
Luke tries to distract Lorelai from her story with his quip about a famous dancer, as if Lorelai might be interested in him as a partner. Lorelai seems to be very interested in getting a tall partner, and Tommy Tune is over six foot six.