Definition of "wall up" [wall up]

• To seal with a wall (verb)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "I also had somewhat less thorough but equally intimate biographies of half the inhabitants of the neighbourhood, including the occupant of “that great ugly house behind the wall up there,” Col. Dennis Edwards."
• "To protect this paradise on earth from poachers, he spent four years and 9,000 building a massive stone wall up to sixteen feet high and three miles long around Walton Park."