Green’s Dictionary of Slang

1. (also cheese and quaver) a favour.

2002		D. Shaw ‘Dead Beard’ at www.asstr.org 🌐 Yeah, I’m onto a definite cheesy quaver today. What a stroke.
2002		K. Lucas ‘All my life I’ve wanted to be a Barrow Boy’ Obfuscation News Apr. Issue 20 🌐 It’s yours as a Cheese and Quaver for a Cock and Henner my old China Plate and cheap at the price. No Gregory Peck’s, it must be the Nelson Eddies.

2. a raver.

2003

B. Dark Dirty Cockney Rhy. Sl. 36: cheesy quaver raver [...] He’s strictly Old Skool. He’s been a cheesy quaver since 1988.