walk off with
US /wɔk ɔf wɪθ/
UK /wɔk ɔf wɪθ/

1.
to steal something
:
•
Someone walked off with my umbrella.
•
He tried to walk off with the store's merchandise.
2.
to win a competition or prize easily
:
•
She walked off with the first prize in the singing contest.
•
The team walked off with the championship trophy.