Full Idea
Let us create extraordinary words, on condition that they be put to the most ordinary use and that the entity they designate be made to exist in the same way as the most common object.
Gist of Idea
We must create new words, and treat them as normal, and as if designating real things.
Source
Gilles Deleuze (A Conversation: what is it? What is it for? [1977], I)
Book Reference
Deleuze,Gilles: 'Dialogues II' [Continuum 2006], p.3
A Reaction
This sounds like the attitude of someone creating a computer game. A language game! The idea is to create concepts with which to 'palpitate' our conceptual scheme, in order to reveal it, and thus put it within our power.