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The most top.

a brief history of the word: This word comes from a most intelligent friend of mine. I mean, look, he made this word up, and he's in AP English!
This car magazine is the toppest. Putting dixie cups in the library is the toppest senoir prank.
by Jon Luitkas. June 09, 2003
The best of something.
Isn't Liam just the toppest bloke, what a beast.
by Hundax November 22, 2013