My dad taught me this. He learned it from his grandfather, WWII vet.

The first marine he found a bean, parley-vou,
The second marine he cooked the bean, parley-vou,
the third marine he ate the bean and PBBBBTH(rasberry noise) all over the submarine,
Inky dinky parley vou.

We sing it to "when johnny comes marching home again"