Wiktionary
box in
vb. 1 To enclose by drawing a box around 2 To immobilize something, usually a vehicle, by placing obstacles, usually other vehicles, obstructing the free movement 3 To limit someone's freedom of thought, movement, expression, etc.
WordNet
box in
v. enclose or confine as if in a box [syn: box up]
Usage examples of "box in".
I have been over it and over it in my mind, and while I was in Peru (which is where I was, looking at bauxite deposits, when Audrey Wyler's letter of enquiry came in to the Deep Earth post box in Desperation), I dreamed of it a dozen or more times.
Guinea hen were all right, and I had one now in the lunch box in the back of the car that I would eat to-night.