C is for...

... what Valentine's day is mostly really about.

See if you can guess what I'm suggesting.
First person to guess correctly gets to buy me a Porsche - to demonstrate your love...

(Chuckling carelessly, I could carry carefully chosen collections of chillingly correct categories of C-words to a critical conclusion, causing cerebral confusion to countless clods and continuing to catch capricious, clever, cashed-up co-charlatans collaborating ceaselessly in co-operative catechising of counterproductive, chameleonic claptrap. Clearly.
Currently though, I can't.)