Z-Dong is a guy named Zach Herron in a boy band known as Why Don’t We (he made up this nickname on his own)
Dong stands for penis so his nickname is literally penis Zach.
Hey! Have you’ve seen that guy in the band why don’t we?
You mean Z-dong? Yeah he’s great!
by Mynameisntlisa:) August 16, 2018
Get the z-dong mug.