Here's a headline on the BBC News website:
Tirade against 'damp rag' EU president shocks MEPs
You might not be too surprised to learn that it relates to UKIP, specifically an intervention by the glorious Nigel Farage http://news.bbc.co.uk/1/hi/world/europe/8535121.stm.
'Tirade' is an interesting choice of word, isn't it? The BBC writer hasn't put it in inverted commas. Is it a quote from an MEP? It doesn't seem to be. No, it looks as if the BBC writer has chosen the word himself. It's a word that could be considered technically correct in the context but, like 'harangue' and 'diatribe', has connotations of excessive bitterness/irrationality. (Or is that only because it usually comes in tandem with words like 'drunken' or 'wild'?)
The BBC website features a mere 45 seconds of Mr Farage's 'tirade'. Hopefully the full 7 minutes will pop up on YouTube soon!