The month in which female deer are fawning, when hunting is prohibited. Fence roof, a covering for defense. They fitted their shields close to one another in manner of a fence roof. fence time, the breeding time of fish or game, when they should not be killed. Rail fence, a fence made of rails, sometimes supported by posts. Ring fence, a fence which encircles a large area, or a whole estate, within one inclosure. Worm fence, a zigzag fence composed of rails crossing one another at their ends; called also snake fence, or virginia rail fence. To be on the fence, to be undecided or uncommitted in respect to two opposing parties or policies.