topper (Noun) — A worker who makes or adds the top to something.
topper (Noun) — A worker who cuts tops off (of trees or vegetables etc.).
topper (Noun) — The person who is most outstanding or excellent; someone who tops all others.
topper (Noun) — An exceedingly good witticism that surpasses all that have gone before.
topper (Noun) — A woman's short coat.
topper (Noun) — A man's hat with a tall crown; usually covered with silk or with beaver fur.