someone who is really cool, handsome and sexy.
DId you see Daryl over there? He's such a bato
In California Spanglish, and in Tagalog (which has absorbed many Spanish words) and in Chamorro, Bato means:
Sissy, Gay, Fag, effeminate, Unmanly. This is daily common usage
"He's a Bato!" Batalo! Ha, ha, Bato!