I would define lazy thinking as a lack of care or effort to go above and beyond what is expected of you. When I was younger, I considered lazy thinking to be looking for shortcuts or an easier way to do things. Nowadays, I consider that efficiency. To me, lazy thinking is no longer trying to find the easiest way to complete a task. It's instead completing that task to the bare minimum standard and then waiting and be told what to do next rather than proactively finding something that needs to be done.