Gremlins: “Mythical creatures who are supposed to cause trouble such as engine failure in aeroplanes, a curious piece of whimsy-whamsy in an activity so severely practical as flying. Now the gremlin seems to be extending its sphere of operations, so that the term can be applied to almost anything that inexplicably goes wrong in human affairs.”

Gubbins: “Used to describe almost any part of the equipment of a plane, with about the same meaning as gadget.”

Egg in your beer: “Too much of a good thing.”