4D, 5D, 7D, 9D, ... they never stopped adding "dimensions". Motion-seats, water sprayers, snow machines or whatever they come up with aren't dimensions for %$@# sake.
Luckily, as an adult I know that there are more important things to be annoyed about. Let's not get into that right now...
Published on by Martin Bellgardt.
Comic transcript
Panel 1: G and H are standing in front of a table with a strange machine on top.
H: Oh, what’s this? Did you build a 3D printer? Why does it look so ... ahm
G: Oh, come on, 3D printing is lame. This is my new 4D printer! Panel 2:
H: Aaaand, ... what’s that fourth dimension?
G: When printing is done, you get some water sprayed in your face! Panel 3: The machine sprays water in H's face.
H: Argh, what did I tell you about using the math of theme park attractions for engineering?
G: I know...