it is called a kimono when there taking a dump in your mouth
children wear costumes to celebrate Halloween or they wear costumes for the fun of it.
There are some ninjas who do choose to wear a headband. However, this is a personal choice and it is not a requirement.
no
nerds, ninjas, ghosts, and public figures.
They wear their costumes whenever they go out to a place or somewhere like that.
A group of ninjas is called a stealth or an ambush
you wear suits
Ninjas :D marines
Yes, ninjas did wear blue clothes (called shozukus) but in Japanese plays at the time the people who went on set to put props on etc. wore black ( or similar dark colors) and some people thought the people who wore black were the ninjas.
There is currently no official phobia for fear of ninjas.
Old folklore states that people started wearing Halloween costumes because it scared the evil spirits away. Now, people wear costumes for fun.
There are no traditional Hanukkah costumes. The only time Jews wear costumes is on Purim.