coffin corner

noun
1.
Football. a corner of the field inside the ten-yard line, especially as the target of a punt intended to go out of bounds in this area and so put the receiving team in a position near its goal line.
Origin
1940-45
Slang definitions & phrases for coffin corner

coffin corner

noun phrase

Any corner of the football field

[1940s+ Football; because any player running the ball upfield from a corner is dangerously trapped]