Ratjacket is a reputation or 'jacket' for snitching. Once acquired, a ratjacket is typically permanent. In the office and other environments where people become well-known to each other, the ratjacket is a form of social leprosy and can lead to ostracization and worse.
Emma noticed a chilly social thermostat at the office. To her horror, Emma realized she had a ratjacket after singing to management about Jenny and Heather's time-card collusion.
To be so intoxicated the you have to squint to see properly, have no sense of balance, no depth perception, and have almost completely lost the ability to speak.