What exactly is a Holy Grail, in terms of characteristics?

I have tried to steal that thing from you for years...but you will not give!

ErgodicSavant

 

I disguised it as a grandfather clock but when the wifey keeps pulling Benjamins out of it, sort of blows its cover.

 

I once heard of a gay pimp that thought the same way...

ES

 

I really like you.
I'm so glad you came back.

 

License Plate: imiruu

Hope it doesn't rain tonight...My Cardboard needs replacing.

ES