to mess up; to fail; to crash
On risque de se planter.
We might mess up.
— Même la pluie (2011)
Personne ne va se planter.
Nobody's going to mess up.
— Crime 101 (2026)
Écarte-toi, on va se planter !
Move aside, we're going to crash!
— Salyut-7 (2017)
Ouais, on va encore se planter.
Yeah, we're going to mess up again.