Mine. An underground tunnel dug by sappers of the Royal Engineer Corps. This tunnel leads from your trench to that of the enemy's. At the end or head of the tunnel a great quantity of explosives are stored which at a given time are exploded. It is Tommy's job to then go "over the top" and occupy the crater caused by the explosion.
Mine Shaft. A shaft leading down to the "gallery" or tunnel of a mine. Sometimes Tommy, as a reward, is given the Job of helping the R. E.'s dig this shaft.
Minnenwerfer. A high-power trench mortar shell of the Germans, which makes no noise coming through the air. It was invented by Professor Kultur. Tommy does not know what is near until it bites him; after that nothing worries him. Tommy nicknames them "Minnies."
Mouth Organ. An instrument with which a vindictive Tommy causes misery to the rest of his platoon. Some authorities define it as a "musical instrument."
Mud. A brownish, sticky substance found in the trenches after the frequent rains. A true friend to Tommy, which sticks to him like glue, even though at times Tommy resents this affection and roundly curses said mud.
Mufti. The term Tommy gives to civilian clothes. Mufti looks good to him now.
N
Nap. A card game of Tommy's in which the one who stays awake the longest grabs the pot. If all the players fall asleep, the pot goes to the "Wounded Soldiers' Fund."
"Napoo-Fini." Tommy's French for gone, through with, finished, disappeared.
"Napper." Tommy's term for bead.