wibble

Unclear; possibly originates in the British Roger Irrelevant comic strip, then popularised by Your Sinclair magazine and the comedy Blackadder.

wibble (uncountable)

1. (Britain, slang) Meaningless or content-free chatter in a discussion; drivel, babble.
2. (Britain, computing) Used as the name of a metasyntactic variable.

wibble (third-person singular simple present wibbles, present participle wibbling, simple past and past participle wibbled)

1. (Britain, Internet slang) To make meaningless comments.

wibble (third-person singular simple present wibbles, present participle wibbling, simple past and past participle wibbled)

1. (US, informal) To be overwhelmed by emotion and take on a childish expression with a quivering lips and chin.