This is a food thermos. My wife got it because it keeps large quantities of food warm (like soup - I'm sure it'd keep a pie warm but getting it out might be a little tricky), but I've discovered that it's also great for a coffee on a cold night, because you can fit your nose inside it to keep warm.
Also, because it's so huge, you can fill it up with coffee at the start of the evening (maybe a liqueur one - have to consult the liqueur coffee decision tree) and it'll keep you going until bedtime. At which point you can't sleep because you've chugged a pint and a half of coffee.
By the way, I made a video about queue jumping. Is it always wrong? Watch and decide.