Overheard en-route to the Isle of Wight a few weekends ago:
G-abcd: Gabcd Final
Sandown Radio: Roger, runway is clear, errr, are you a prune?
G-abcd: Affirm. 2 prunes on board
Sandown Radio: After landing vacate left and park with the other prunes near the windsock.
This was repeated several times so by the time I called for joining information I insert "1 prune on board" into my initial call.
TG.