fence in

to restrict someone in some way. I don't want to fence you in, but you have to get home earlier at night. Don't try to fence me in. I need a lot of freedom. Your last stupid move fenced in the department, making us less effective.

to enclose an area within a fence. When they fenced the garden in, they thought the deer wouldn't be able to destroy the flowers. We fenced in the yard to make a safe place for the children.

Also, hem in. Restrict or confine someone, as in He wanted to take on more assignments but was fenced in by his contract, or Their father was old-fashioned and the children were hemmed in by his rules. Both expressions transfer a literal form of enclosure to a figurative one. The first gained currency from a popular song in the style of a cowboy folk song by Cole Porter, "Don't Fence Me In" (1944), in which the cowboy celebrates open land and starry skies. The variant is much older, dating from the late 1500s.