“What did you do this weekend?” “I worked in the yard, 'mostly'.” [=I spent most of my time working in the yard]
The people at the concert were 'mostly' older people. [=most of the people were older people]
He gets around 'mostly' [='mainly, chiefly'] by car. [=he usually uses a car to get around]
(..) hunting up at the Wall? Oh, yes. Yes. A good amount. North of the Wall, you don't hunt, you don't eat. Mostly deer or is it elk as well? Rabbits. Sometimes squirrels. I say "we," it's my friend Jon mostly. Sometimes Edd. Oh, and Gilly. (..)2016 TvShow: Game of Thrones Title: Blood of My Blood Season: 6 Episode 6