A smell-a-like is a perfume that smells like a designer fragrance but with a different name and packaging, and at a cheaper price. A smell-a-like isn't an exact copy, but often smells very similar.
I wore Yves Saint Laurent's 'Y'in the 1970's and woukd know it anyehere. When I bought Chanel's Crystalle for the first time, the memories and 'total recall' of Y came flooding back. They are almost interchangable but alas, I fear that Y is discontinued.Bizarrely, It lives on in Chanel.