not know the half of it

US /nɑt noʊ ðə hæf əv ɪt/
UK /nɑt noʊ ðə hæf əv ɪt/
"not know the half of it" picture
1.

ne pas en savoir la moitié, ne pas connaître tous les détails

to not know the full extent or all the details of a situation, especially one that is more serious or complicated than it appears

:
You think my job is tough? You don't know the half of it!
Tu penses que mon travail est difficile ? Tu n'en sais pas la moitié !
She's been through a lot, but her friends don't know the half of it.
Elle a traversé beaucoup de choses, mais ses amis n'en savent pas la moitié.