Get your license upgraded

Euphemism for getting a girlfriend.

Stems from the idea that upgrading one's probationary license to a full license signifies maturation; as would the entering of an 'adult' or legitimate relationship.

Dude, you should grow up and get your license upgraded.

What do you mean, I hardly drive.

No...dude you need to keep up on your lingo--get a girlfriend.

Oh.