26.Jan.2010 Yabai
やばい – dangerous; risky.
The word やばい is also commonly heard in the slang used by youngins. Its meaning can run the gamut from “awful” to “cool” to “oh crap” to “uh-oh.” You will need to glean the exact meaning from context.
As Britney Spears might say (if she were Japanese), “やばい、またやっちゃった!“