That's one too many syllables, bub

Something you say to someone when they add more than 17 syllables in a haiku.

Person A:

"That's right I'm Sokka,
It's pronounced with an 'okka'
Young ladies, I rock ya!"
*counts syllables on fingers nervously*

Person B:
That's one too many syllables, bub
*yeets Person A out the window*