A Ninja Typo is a punctuation or grammatical error that does not reveal itself to the author (no matter how hard the author looks for it) until it is too late (i.e. after it has been published in a way that cannot be retracted).
Example : Dang! I proofread this email 3 times and I STILL managed to leave the "l" out of "turtle". That Ninja Typo just killed my chances of getting re-elected.
by Mank002 October 22, 2014

Girl 1: How are you feeling?
Girl 2: Much better since I took a shit in your studio apartment, thank you.
Girl 1: Wow, I had no idea. Gold throwing star, Ninja pooper.
Girl 2: Much better since I took a shit in your studio apartment, thank you.
Girl 1: Wow, I had no idea. Gold throwing star, Ninja pooper.
by newsvava February 21, 2009

a mystical being able to transcend in and out of buildings, rooms, houses, social groups and even multiple dimensions, Usually under the influence of alcohol to the point of memory loss
by Dancingdanshittingsand October 29, 2012

Video game opponent who appears to teleport all over the map due to lag.
Sometimes using a lag switch.
Sometimes using a lag switch.
by Yhatzee January 31, 2009

After a sporting event; when your teammate is washing his hair and his eyes are closed, someone sneaks up behind him and checks his oil with their thumb (quickly slips a thumb in his ass), then runs off before he is able to rinse the soap away and identify the clandestine violator
After the game someone gave John a rusty ninja. John was attacked by a rusty ninja after the game. Be careful, there's a rusty ninja in there.
by sandy_x December 4, 2012

the art of sporting socks with thong flip flops, which in fact look like the traditional footwear worn by Ninjas
at first glance he looked like a geek with his socks and flip flops on, but wait...don't ninjas wear stuff like that, he could know karate... he does have Ninja Toes!!
by nevets eural September 5, 2010
