thick as thieves in French
thick as thieves in French
comme cul et chemise
(idiomatic, simile, of friends or members of a group) Intimate, close-knit, tight.
comme larrons en foire
(idiomatic, simile, of friends or members of a group) Intimate, close-knit, tight.
copains comme cochons
(idiomatic, simile, of friends or members of a group) Intimate, close-knit, tight.