1 definition by The Nightmare Child
Derived from the song by Rick Springfield. The term 'Jessie's girl' does not refer to any individual, but it is a girl, who is going out with a friend of yours, that you want for yourself. In this case 'Jessie' is replaced with the name of the boyfriend
You got a friend, lets say he is called Tom, who is going out with a girl, lets call her Melissa, and you wish you had her for yourself. You'd say "I wish I had Jessie's girl"
by The Nightmare Child February 21, 2010