Still one of my favourites is "Dennis in the last minute" at Palace when we won 1-0. The slogan appears on the wall of a pub in Chiang Mai, Thailand, where, I should add, you are invited to write things on the wall.
One of the most obscure was a small group of Hereford supporters who sang "At least we own the corner flags" when we won 2-0 at Hereford in the League Cup. We were without a ground at the time, to be fair, even though I suspect we did own the corner flags.
There must be many more.