coup de main - noun
kü-də-ˈmaⁿ
Definition of coup de main : an attack that achieves complete surprise.

Watch: The teaser for the fourth and final season of 'Sex Education'.

The teaser trailer for the final season of 'Sex Education' has dropped with returning cast appearing including Asa Butterfield, Ncuti Gatwa, Emma Mackey, Connor Swindells, Aimee Lou Wood, and Mimi Keene. 

The season will be released on September 21st over on Netflix.