A word similar to batty boy, and batty, batto is a term which describes a male who is either overtly homosexual, and participates in sodomy, or behaves in a manner that lends himself to suspicion of this. Often used as an insult.
The kid in school who pretends to be really cool and tries to hang out with all the cool kids even though no one likes him. This person will tend to change their personality just to fit in but in a way that it is really obvious. This is the type of person who will burn your house down when you say something about their personality. You DO NOT want to be friends with this person.
"Look at Devin trying to fit in with the jocks. He is such a batto."
It is the base stance for the Hiten Mitsurugi Ryu sword fighting technique with the objective of efficiently eliminating each opponent with a single swing of the weilder's katana.
The samuraiwarrior readies himself as demonstrates the initial form of his attack using the Battou no Jutsu stance.