The following definition occurs if Carl was a weeaboo, and Paul needed therapy from the trauma. (Llamas With Hats)
"Niko Niko Ni!"
"I WILL BREAK YOUR NIKO NIKO KNEECAPS, CARL!"
When doing the 'ok' hand symbol upside down. If you are the target the objective is to not look at the symbol.
Person: Hey, (name) look. *does gottem signal*
Target: Oh you got me man. Good job.