be as thick as thieves



be as thick as thieves

  (old-fashioned)
if two people are thick as thieves, they are close friends I'm sure she tells Ruth what's going on - they're as thick as thieves, those two.
See also: thick, thief

Common Names:

NameGenderPronouncedUsage
Mose-German
Larry['læri]
Myriam-French
Nobuno-booJapanese
Gulbrand-Norwegian (Rare), Danish (Rare)
&Thorn;ÓRveig-Ancient Scandinavian