Ninjackoff

Jacking off or masturbating in a ninja-like manner, often in public places like bathroom stalls or school buses.

You can go in the bathroom there, but be sure to ninjackoff so you won't be noticed

Ninjackoff by Timelinemc March 3, 2011

NinjaBoffin 

Another word for a noob. Used primarly in the game Paladins by Hi-Rez.

'Wow you really ninjaboffin'd that'

NinjaBoffin by KarmaGG July 17, 2016