The word bellyfeel means a blind, enthusiastic acceptance of an idea.
The word likely comes from the idea that any good Oceanian should be able to internalise Party doctrine to the extent that it becomes a gut instinct – a feeling in the belly.
“ | Consider, for example, such a typical sentence from a Times leading article as "Oldthinkers unbellyfeel Ingsoc." The shortest rendering one could make of this in Oldspeak would be: "Those whose ideas were formed before the Revolution cannot have a full emotional understanding of the principles of English Socialism." But this is not an adequate translation. ... Only a person thoroughly grounded in Ingsoc could appreciate the full force of the word bellyfeel, which implied a blind, enthusiastic, and casual acceptance difficult to imagine today. | ” |
—Orwell, 1984 Appendix |
Compare to truthiness.
Read more about this topic: List Of Newspeak Words