Recipriversexclusion

noun
A number whose existence can only be defined as being anything other than itself.
Origin
Portmanteau of ‘reciprocal’, ‘reverse’, and ‘exclusion’.
Source
Life, the Universe and Everything

Tempophone

noun
A telephone able to place calls across time and space.
Origin
Derived from tempus (time) and phone (sound).
Source
The Restaurant at the End of the Universe

Relastatic

noun
A device that holds the area within static, relative to the universe without.
Source
The Restaurant at the End of the Universe

Frood

noun informal
A really amazingly together guy.
Source
The Hitchhiker’s Guide to the Galaxy