(figuratively) tempest in a teapot, storm in a teacup, much ado about nothing

in the heat of the moment

(informal, figuratively) to be riding for a fall, to be heading for disaster

in one's birthday suit, naked as a jaybird, in all one's glory

Alternative form of dans le plus simple appareil

Alternative form of mettre dans sa poche

Synonym of mettre dans le même sac

(informal) to get up someone's nose, to dislike someone

on a similar note, similarly, likewise, in the same vein, by the same token

Synonym of le nez dans le guidon