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1.
A song that is unique to every individual - a song that speaks about your personality and makes you want to get your groove on. Yes, I said get your groove on. A particular theme song is one that makes the person feel amazing when it is played.
Andrea: My theme song is Lady Gaga's Just Dance. Pretty awesome, just like me.
Holly: Into the NIghtlife by Cyndi Lauper!!!!
by Cool Bushes Baked Beans January 27, 2009
 
2.
Things that exist or were invented or created at different times by different people but none-the-less, go perfectly together.
Gal Drinking a Latte: Dude, coffee is my fucking theme song.

Guy one: I think I found a girl i'm finally happy with.

Guy two: sounds like she's your theme song man.

by anthony_anatomy February 25, 2009