Meaning 1 ►▼
A sailing maneuver in which one boat gets between the wind and the opponent's sail, thereby slowing the boat's speed
In the San Francisco America Cup matches the competing sailboats often took the wind out of their opponent's sails in order to reach a goal faster or to finish first.
Meaning 2 ►▼
to thwart; discouragement
Tom called my girl first and took the wind out of my sails.