I have scoured my weight watchers books for entries under "Y", in the vain hope that Yarm might be included, but sadly no. However Yam is included so I shall inquire tonight as to whether that is a simple spelling error.
I have also looked under "W" (weekend on the piss) but this also is missing for some reason.
If the spelling is correct, I shall sadly have to miss this time round, unless you can change the name to
"INVASION YAM"