SOOKIE: Just try to look older [to get into the nightclub].
RORY: How?
SOOKIE: Look like you’re thinking about retirements or 401(k)s and stuff.
In the United States, a 410(k) is a pension account where retirement savings receive contributions from the employer, and is tax-deferred until retirement. In other countries, it might be called a personal pension scheme or superannuation fund.
The Annotated Gilmore Girls 