Be the Theme

When something has so much influence on your day to day life, or influences your thoughts and actions to such a remarkable degree that it almost because a symbol for who you are

Cory: Man you always smell like that good weed
Smiling: Weed be my motha f*ckin theme nigga

Parents: I don't wanna hear anymore of that 'rap music' in my house!
Rebellious Kid: Big L be the theme nigga!