the.com/bunkers
Holes designed by golf, perfected by war, both built to ruin your day.
means Reinforced underground shelters built to survive attack, or sand traps built to survive your swing.
from From the Scots bonker, a chest or seat that doubled as storage; later a coal bin on ships, then any fortified hollow, then golf's sandy curse.
Naval rootsOriginally a ship's coal storage compartment.
Golf dreadSand traps share the name and the despair.
Doomsday luxuryBillionaires now buy them with pools.