noun
grog
GRAHG/ɡrɑːɡ/
An alcoholic drink, especially rum mixed with water.
The mug holds grog made from the nearby rum and water.

Etymology
The drink supposedly takes its name from “Old Grog,” an admiral nicknamed for his grogram cloak who ordered sailors’ rum diluted with water. The term later broadened to strong alcoholic drink generally.
In context
the best solution it turned out was to mix the juice into liquor usually rum and produce grog