(for) land('s) sake(s) (alive) spoken language exclamation
A mild exclamation to express surprise, alarm, or annoyance,...
Land sake! I almost hit the boy passing by.
Land sake! Just pick one. You have been hesitating for half an hour.
Land sake. I never thought that I could pass that exam.
For land's sake, I just broke the window.
This phrase is used to describe something very modern or updated or something that no longer looks like what it's used to.
It has been a long time since I left my high school, and now I have to admit that it's certainly not your father's high school anymore.