Tokyo

 まったり (Mattari) 

Mattari has many meanings to it, but all good ones: rich (taste), full-bodied (flavor), mellow(ness), laid-back (lifestyle).

 立ち飲み (Tachinomi) 

A standing-only bar, usually cheaper and more casual than other bars in the city.

 デパ地下 (Depachika) 

A combination of "depato,” meaning department store, and "chika,” meaning basement, these are just as common as kombini, except you'll find a huge variety of gourmet options.

 駅弁 (Ekiben) 

Don’t forget to grab these bento box-style meals before you hop on a bullet train out of Tokyo. They’re sold on trains and in train stations all over Japan.

A tip about tipping

The Japanese do not tip at all: in fact, leaving cash on the table at a restaurant will result in a waiter chasing you down the street to give it back. Instead, saying go-chi-sō-sa-ma de-shi-ta ("Thank you for the meal") is the best way to show gratitude to your server.

Slurp for satisfaction

This is a huge surprise when you visit: slurping during your meals (especially ramen or other noodles) is a kind form of satisfaction, and even necessary for maximum enjoyment. The way to a chef's heart and self-esteem is in a well-deserved slurp.

The art of chopsticks

Some simple rules when using chopsticks: don't leave them standing upright in a bowl of rice. Never pass food directly to another person using chopsticks. Basically, anything you wouldn't do with a knife and fork, you shouldn't ever do with chopsticks.