cassandraing 

to tease constantly; cunt like and extreme bitchiness with out being on your period

Cassie stop cassandraing me you are such a cunt

cassandraing by Ham1125 March 22, 2010

Cassandranitis 

The illness which causes constant obstructions or interuptions of others' conversations.

Gloria must be suffering from a bad case of cassandranitis because she can not seem to be able to stay the he'll out of our conversations.

Cassandranitis by A & B Conversation September 3, 2009

Cassandrian task 

Dealing with people you know won't listen to you, despite being provided accurate information, and watching them fumble about when you told them the solution from the start.

(Often witnessed in customer service or technical support)

Releasing this new feature was a Cassandrian task.

Cassandrian task by Luk164 May 24, 2025