Slang definitions & phrases for pin someone down
pin someone down
verb phrase - To get a definite answer, commitment, piece of information, etc, from someone: He wouldn't say just when, I couldn't pin him down (1951+)
- To make someone immobile, esp to keep soldiers in place with constant or accurate fire (1940s+)
- To identify or classify someone definitely; peg, pin: I can't pin her down, but I've seen her before (1960s+)