-The Cadillac of all racks. Racks referring to a woman's breasts, being large, and sway/move perfectly while in motion. Much like a Cadillac.

-Big perfect boobs

-A women's chest you can't stop looking at
Did you see that chick jogging, talk about a rack-a-lac

-Stop the car!
-Why?
-I just saw a rare find.
-Old Cadillac?
-No rack-a-lac
-.....Nice!
by MttVrgs October 6, 2011
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