Meaning

• Drink, liquor.

• (by extension) A long draught from a drink.

• A person who drinks deeply.

• A tackle with ropes which are not parallel.

• Warm beer flavoured with spices, lemon, etc.

Meaning

• To drink (usually by gulping or in a greedy or unrefined manner); to quaff.

  "That sailor can swig whisky with the best of 'em."

• To suck.

• To take up the last bit of slack in rigging by taking a single turn around a cleat, then hauling on the line above and below the cleat while keeping tension on the line.