merder

to screw up, to mess up

m ɛ ʁ . d e
merd shit + er Infinitive
verb Rare #41,384
to screw up, to mess up Vulgar/slang.
FR: Je ne veux pas merder cette fois.
EN: I don’t want to screw up this time.
Conjugation of merder
Past
merder

Mais si on se défonce on va merder.

But if we get high we'll screw up.

Parce que si vous faites cela, les choses vont merder.

Because if you do that, things are going to go wrong.

— Troupe d'Élite : l'Ennemi Intérieur (2010)

Des pros qui n'allaient pas merder.

Pros who weren't going to screw up.

— Bullet Train (2022)

Tout le monde peut merder.

Anyone can screw up.

— On ne vit qu'une seule fois (2011)

Essayez de ne pas merder, ok?

Try not to screw up, okay?

— En terrain miné (2014)

Sounds similar to