Definitions

1. noun

A term used to refer to an obscure or imaginary entity, often employed in humorous or whimsical contexts to describe a concept or thing that may not exist or be well-defined.

“The politician’s plan was dismissed as a trillibub, without any real substance or chance of success.”

2. verb

To invent or create a trillibub, often as a joke or a form of wordplay.

“The linguist trillibubbed a new word, combining elements of multiple languages to create a unique term.”