Pertaining to, or characteristic of, code that triggers the end of a construct because it is not indented far enough. In other words, code to the left of an offside line is offside. In correctly indented code, you take advantage of the offside rule in order to delineate the end of constructs. If you use indentation improperly, an offside condition can cause the compiler to issue a warning or can lead to the incorrect interpretation of your code.