(figuratively) to slip through the cracks, to fall through the cracks, to slip through the net

(transitive with à) (informal) to slip through someone's fingers, to slip past someone, to pass by someone (of an occasion, opportunity, etc.)

(figuratively) (transitive with à) to step down in favour of, to stand aside in favour of, to pass the mantle to, to pass the torch on to, to pass the baton on to, to hand the reins to; to hang up one's boots

to change subjects abruptly, to go from pillar to post, to hop from one subject to another, to jump from topic to topic, to constantly go off on a tangent

(informal, figuratively) to go down the drain, to be abandoned, to be forgotten about, to vanish into oblivion, to be left out, to go out the window

(informal) to kick the bucket, to die / (informal, of a woman) to lose one's virginity; to get porked, to get fucked; to get raped

(figuratively) (transitive with à) to step down in favour of, to stand aside in favour of, to pass the mantle to, to pass the torch on to, to pass the baton on to, to hand the reins to; to hang up one's boots

(figuratively) (transitive with à) to step down in favour of, to stand aside in favour of, to pass the mantle to, to pass the torch on to, to pass the baton on to, to hand the reins to; to hang up one's boots

Alternative form of passer entre les mailles du filet

to go on one's way, to walk by without stopping, to keep going without stopping, to move on without a halt