NINJA_Ryu
verb

1. to stealth excellently

The man NINJA_Ryued into the house, stole all the jewels, even on the landmasters fingers and those imbedded in his groin, without anyone noticing.

2. To be a very good fighter, very intimidating.

"I will NINJA_RYU your ass all the way across the globe" the woman said, watching the thugs run away screaming in fright.