Originally a form of satirical poetry, it now also means a satirically or cynically motivated intentional violation of a grammatical rule by someone who clearly knows better.
To willfully and outrageously split an infinitive is a hudibrastic.
Pronounced 'H-We-Dee-Af'. Abbreviation for "Hope U Die In A Fire". Commonly used during text battles as a Sweaty Par, or just generally used as an insult to end all argument between two people. Can also be used to say goodbye to people if you are feeling particularly mean.