thread the needle
1. To insert thread through the eye of a needle. You'll need to thread the needle before you can start sewing.
2. To pass something through a narrow space between two things. The quarterback really threaded the needle with that pass between two defenders.
3. A children's game in which the participants stand in a line and hold hands. The person at the end of the line then ducks under the others' linked arms, pulling the rest of the line along with him or her. Come on, we're playing thread the needle!