1 definition by Captain Leroy
Talking in one's sleep, usually in a nonsensical manner. It's possible to have a multiple-sentence "conversation" with someone who is "ferdering". The ferderer will not remember the conversation.
Etymology: Some English-speaking people who talk in their sleep say words that sound like "ferder ferder ferder".
Etymology: Some English-speaking people who talk in their sleep say words that sound like "ferder ferder ferder".
by Captain Leroy February 13, 2009