Eleven is the magic number for fans of Rob Reiner's much-loved rock mocumentary This Is Spinal Tap, who have decided to mark today's auspicious date of 11/11/11 as Nigel Tufnel Day, in honour of the great man's specially-made guitar amps.

The Nigel Tufnel Day blog, purportedly run by the the Nigel Tufnel Day Appreciation Society and Quilting Bee, puts it thus:

"Only once in every century are we given the perfect opportunity to honor one of the greatest artists and philosophers of our time. This day, this apex of epic riffs, this nirvana of noise, this valhalla of virtuosity, this bodhi of broken eardrums, this moksha of mach, that you know as 11 November 2011, is a once-in-a-generation opportunity to collectively experience the enlightenment of Eleven. It is a day when we may gather with loved ones and break bread into tinier pieces of bread for small sandwiches. It is a day for the admiration of guitars, and also for the not touching of them. And finally, when the haberdashery plays are all acted, we celebrate the freeing of the enfoiled trouser vegetables."

While this obviously ought not to interfere with the important business of Rememberance Day, we thought it a good opportunity to reel out 11 key Spinal Tap quotes, as recommended by @guardianmusic Twitter followers.

1. "Well, it's one louder, isn't it? It's not 10. You see, most blokes, you know, will be playing at 10. You're on 10 here, all the way up, all the way up, all the way up, you're on 10 on your guitar. Where can you go from there? Where?"

Nigel Tufnel, explaining why his amp goes up to 11

2. "I'm not co-managing this band with anyone. Especially not someone who dresses like an Australian's nightmare."

Tap manager Ian Faith on Jeanine Pettibone

3. "Shit Sandwich".

One critic's review of the album Shark Sandwich

4. "What's wrong with being sexy?"

Nigel responds to accusations of sexism

5. "He died in a bizarre gardening accident"

On the first Spinal Tap drummer

6. "Have … a good time … all the time."

Words to live by from Viv Savage

7. "I wouldn't worry about it, it's not a big college town."

Ian Faith on Boston MA

8. "It's like, how much more black could this be? And the answer is none. None more black."

Nigel on the Smell the Glove album artwork

9. "As long as there's, you know, sex and drugs, I can do without the rock'n'roll."

Mick Shrimpton, one of Spinal Tap's unfortunate drummers

10. "Well, I suppose I could work in a shop of some kind, or do, uh, freelance selling of some sort of product. A salesman, like maybe in a haberdasher, or maybe like a chapeau shop or something. You know, like, 'Would you... what size do you wear, sir?'"

Nigel on life after rock'n'roll

11. "Here lies David St Hubbins ... and why not?"

David plans his own epitaph

Over to you. Any key quotes we missed here?