What is Luncheon Meat Truncheon?
1.
Means a phallus. With attention drawn to meatiness, fleshiness and edibility. big giant squishy willy... oh yeah
Used by Jamie Theakston (he IS a celebrity, just a lame one).
"...and lo he drew forth his luncheon meat truncheon and jabbed at the gushing slot..."
See
2.
The male genetalia - the penis.
Also see
All of a sudden, jamie whipped out his luncheon meat truncheon and started spanking it.