Expression of surprise
Woah! I didn't know they were pregnant!
|Whoa||Expression of surprise|
|Oh snap||Expression of surprise|
|AOAS||All of a sudden|
|AYKM||Are you kidding me?|
|AYS||Are you serious?|
|FGS||For goodness' sake|
Woah is a popular term that is used to express surprise. It is the same thing as Whoa, but less commonly used since "Whoa" is the preferred spelling.
The term is often used in reaction to something you didn't expect or have a difficult time believing that happened. It may be typed but is also said out loud a lot as well.