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

First-look: 'New Girl' x 'Brooklyn Nine-Nine' crossover episode.

Because they’re both on the same TV network, Fox, 'New Girl' and 'Brooklyn Nine-Nine' are coming together next week for a one-hour crossover episode starring the casts of both shows.

Watch a trailer for the upcoming episode below...