Definitions
1.nounDrink, liquor.
2.noun(by extension) A long draught from a drink.
3.nounA person who drinks deeply.
4.nounA tackle with ropes which are not parallel.
5.nounWarm beer flavoured with spices, lemon, etc.
6.verbTo drink (usually by gulping or in a greedy or unrefined manner); to quaff."That sailor can swig whisky with the best of 'em."
7.verbTo suck.
8.verbTo 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.