You will need a jug, because you are going to make a jugful. Chop several limes roughly, into eighths, say. Crush the lime pieces and throw them along with their juice into the jug. Add crushed ice, white suger and plenty of rum. Stir well and serve immediately, lime pieces and all.
Important note: The rum should be Brazilian rum ("Pinga" or "Cachac, a", ie. Cedilla on the second c, some brands are Velho Barreiro, Pitu', Casa Grande, Tatuzinho) and the limes should be limes. Cachac, a has a very different taste from, say, Bacardi, apparently because it is only refined once so contains esters and other compounds that are removed by more distillation (that's a story I've been told, anyway.)
Caipirosca, made with vodka instead of rum.
Cajurosca, made with cashew fruit and vodka.
I forget the name, made with pineapple and vodka.
Chile-Heads Digest V3 #039
From the Chile-Heads recipe list. Downloaded from Glen's Mm Recipe Archive, http://www. Erols. Com/hosey.