Red Ninja

another name for a girl's period. This is because your periods can sneak up on you out of nowhere like a ninja. The red's because of the girl's period.

Girl 1: ugh! The red ninja caught me today!
Girl 2: Was his name (t.o.m.)?
Girl 3: yup

Red Ninja by xoamrc November 2, 2009

red ninja

Slang for Triple C's, aka Coricidin Cold and Cough. Contains DXM and will mess you up.

Ryan: Ouch, did you feel that?
Tom: No dude, what?
Ryan: That red ninja just kicked me.

red ninja by Ryan C March 29, 2004

Red Lipped Ninja 

When going down on a girl and in the process she starts her period, unknown to you.

"Jane forced him to munch the rug last night and he ended up looking like a red lipped ninja."

"Bobby was going down on Sarah when she totally red lip ninja'd him. What a bitch."

Red Lipped Ninja by thatoneguyuno May 11, 2010

red haired ninga

it means ginga,or ginger,someone who is usually ugly,and talks a big game,all in all a total bitch.

red haired ninga-ginga. Joey talking to Ryan:"I really wish that red-haired ninga would piss off and stop being a total bitch.

red haired ninga by penismelter March 15, 2016