the cadillac of 

the best of the best. something that differentiates itself with superior quality.

Daytons are the Cadillac of wire wheels.

the cadillac of by Tha Cuddla January 8, 2005

The Cadillac of all sandwiches 

See Philly cheese-steak

-I'll take a Philly cheese-steak, please.
-Ah, yes....the Cadillac of all sandwiches. That'll be $5.38

The Cadillac of all sandwiches by Shawn B. June 17, 2003

take the cadillac out of the garage 

when a seemingly shy person (chick) becomes very outgoing, typically when under the influence.

Veronica, you should take the cadillac out of the garage more often.

take the cadillac out of the garage by yosdk September 5, 2005