The phrase "great topper" means something that is excellent or impressive, usually used to describe a person or thing that surpasses expectations or does something really well.
Sentences with «great topper»
I love this shade with black, but I think it could be a really great topper to a winter white / neutrals outfit as well. (thistimetomorrow.com)
Stuffed animals make great toppers, but don't under estimate the power of a cute book or a pair of shoes. (thelifejolie.com)
Both would be great toppers since planes can be so cold. (aglamlifestyle.com)