The Rice University Neologisms Database

reciting a monologue or soliloquy Simple derivation explains this one, the verb forming from the noun ‘monologue,’ one actor’s dramatic speech or soliloquy. This word can have connotations of tedium and length, the one ‘monologuing’ monopolizing the conversation at great and boring length. Thus, the new verb expresses annoyance with the one reciting the monologue, and perhaps resignation at its beginning. The need for a verb form of ‘monologue,’ was clear; there is none, and it is very cumbersome to type ‘reciting a monologue,’ rather than just using the zero-derivational verb form. However, older generations seem to have been preferring tradition; this word is not often seen outside of more youthful groups, usually those who have already developed their own lingo, and are thus more accustomed to words taking on new meanings.