"Oh, Jeroen: BUY1OR2 comes from when some notable Mk2 racing Jaguars in the sixties had the registration BUY 1 and BUY 12. That is Buy One or BUY One Too. Hence BUY One or Two. Not a proper reg but a bit of a piss take."
Good one Tim, thanks!
BUY 1OR2 - Buy one or two... "Not a proper reg but a bit of a piss take"
Picture via Tim Harber