Top definition
the small nearly unnoticeable laugh a ninja does on the rare occasion when he is caught. Ninjas are almost never caught, hence no one knows what a ninja giggle sounds like.
As the ninja unobtrusively snuck down the high school hallway and the assistant principal saw him, he ninja giggled
by luckyones05 April 26, 2006
Happy St. Patties Day!
buy the domain for your travel blog