They felt they 'had' the win/game 'sewn up'. [=they felt that they were certainly going to win]
She designs her own dresses and 'sews' in her free time.
He scored a touchdown that 'sewed up' the win/game.
(..) the bears were on a bus. Maybe they're super smart government bears on their way to fight terrorism. Anyway, all you need to do is sew one of these bad boys up before me, and I'll know you have the skills to be a surgeon. Are we clear? As a vodka tonic. (..)2010 TvShow: Scrubs Title: Our Thanks Season: 9 Episode 13