an easy defintion bc non australians dont get it and it pisses me off.
eshay is kind of like an australian chav. Tend to move in groups, majority male. They speak pig latin. (example "adlay" "itchbay" "oofchay") wear sports brands such as nike and adidas, have a ratty and a mullet (a autcal mullet not the sorry excuse u americans have). To make it simple they are that group on public trainsport that are very loud and annoying and you go out of your to ingore them.
An Australian word for a particular type of person. For example, that Selina Vongrasy over there is an eshay! Due to their apparent outbursts and threats. I'm surprised I don't see a pair of TN's onna! This type can be harder to notice.