What is the meaning of "ero" in Japanese?

Read also:

• Why is there no evidence of a multiverse theory?
• If women aren't shallow, why do most tall, good-looking men have girlfriends?
• I’m British and I'm hella bummed about it. Wish I was American or even Canadian, ’cause let’s be real, Canada’s gonna end up part of the States anyway. What should I do?
• Why do Americans and foreigners alike describe the USA as prudish? Why do I see nothing prudish about the USA society? USA feels like one of the loosest countries although Americans claim to be very reserved.
• What is the reason for writing X^2 as XX instead of X*X?
• Why are men ridiculously delusional in the women they want/approach? I'm not a troll. This is a real question. Why does a fat, pot bellied, unkempt, balding, stupid (ergo poor) man, tell a woman above his league that she isn't hot enough for him?
• 'The Alters' is a genre-blending sci-fi survival ordeal about the horrors of being a project manager - Space
• Where are the big girls? This is the first time I've seen a bigger lady boy and that's awesome .. you should post more of them here, nothing wrong with a thick black lady
• Are evolutionists giving evolution a bad name by claiming humans started off as shrews?
• Is a man over 50 not married no kids a red flag?