I'm unfamiliar with the expression, but it obviously describes an offense that takes the victim totally by surprise and shock.
Man Against Crime - 1949 High Ambush 4-30 was released on: USA: 22 April 1953
Just as you have spelled it: ambush.
The noun 'ambush' is a standard collective noun for:an ambush of tigersan ambush of widows
an ambush is a planned trap.
'Ambush' is one possible answer.
The plural form of ambush is ambushes.
Ambush is not necessary, they are herbivores
The troops walked right into an ambush. The enemy soldiers set up an ambush in the empty building.
Ambush Bug was created in 1982.
Bright Ambush was created in 1934.
The ISBN of Murphy's Ambush is 0802741495.
Ambush Records was created in 1997.