flèche du Parthe
common noun
see arrow, of and Parthian, comes from one of the combat techniques of the Parthians in antiquity, which consisted of a sudden retreat in the face of the enemy to incite them to pursue. while galloping, the Parthian horse-archers would then turn around on their mounts and shower their pursuers with arrows, who thus found themselves exposed and unable to retaliate.
Definition
Synonym
in cauda venenum