(figuratively) to sell one's soul to the devil

in all conscience, in good conscience

(figuratively) to look for the right fit for one / (in particular) to look for one's special someone, to look for the right person; to look for a suitable match

(informal, transitive with pour) to be second to none, without equal when it comes to something; to be peerless for something; to do something like no one else

ahead of one's time

Alternative form of dans le plus simple appareil

(figuratively) to be a regular (somewhere, especially in a restaurant)

(Quebec, informal) to talk through one's hat

(figuratively) to stick one's oar in, to put in one's two cents

to become a victim of one's own success