WW2 SLANG

AK DUM
At once, hurry up. From Hindustani.
 
ALLEY
Go! Clear out! Run away! From French allez.
 
ALLEYMAN
German soldier. From French Allemagne. "If you want to see your dear Fatherland, Keep your head down, Alleyman" - popular trench song of 1916.
 
ALL OLD CROCKS
Army Ordnance Corps (AOC).