idiomoaksgreat oaks from little acorns grow BrEBrEold-fashioned used in order to say that something important can start from a small beginning:I met my Reggie at a mess-hall dance - I hardly noticed him at first, but from little acorns grow mighty oaks and within a year we were married.
oak(s)
(oks)
mod. OK; satisfactory; worthy. (Prisons.) That dude’s oaks.