*dokodemo door (anywhere door):
One of Doraemon’s most commonly used gadgets is the dokodemo door, a door which allows travel to anywhere by simply going through the door.

ash: you know “draemon”?
noa: big blue fat cat, right!?
ash: haha he is a funny cat robot!
noa: a robot! wooo, sci-fi!! hey! that means we can’t get a dokodemo door.
ash: why not?
noa: sci-fi is fiction.
ash: maybe sci-fi is our future! you never know, one day sony might produce a dokodemo door.
noa: if so I’d rather get it from Apple, ” i D o o r ”