When your boss puts unreasonable deadlines and you have to work 80 hours a week for like 20 weeks in a row.
I used to enjoy going on walks after work but my boss told me we have to crunch for a few days but it has been seven months and I just want to see the sun again.
The way one works during crunch time. In an effort to make up for schedule slippage and meet a deadline, workers are required to make sacrifices including (but not limited to) sleep, nutrition, social life, hygiene, and product quality.
The whole team is in crunch mode, so we've got the sleeping bags in the office and we're sending out for more pizza.