sew something up

sew (something) up

1. To close an or multiple openings in something by sewing, especially to repair or mend it. I had to use fishing line to sew up the hole in the sail. Would you mind sewing these pants up for me?
2. To successfully conclude or settle some dealing, activity, or endeavor. I was finally able to sew the contract up with the other firm. She seems to have sewn up a victory in the last days of the election.
3. To gain and maintain total control over something. There have been a few rival companies, but most would agree that they've sewn up the smartphone market at this point.
See also: sew, up

sew something up

tv. to finalize something; to conclude something. (see also sewed up.) Let’s sew this up and get out of here.
See also: sew, something, up