Idiom
bowl someone overbowl (someone) over
1.
to completely surprise someone.
I was totally bowled over by the beautiful gift from the office staff.The party completely bowled him over.
2.
to cause someone to fall by hitting them with your body.
Reagan burst through the door, practically bowling over Jeanne.
Etymology: based on the game of bowling, in which a ball is rolled toward a group of wooden objects with the intention of making them fall