Red bull and usually something like a cruiser. More..powerful version is 25% vodka, or 50% vodka and red bull. Best not to have more than bout 5 though, can be deadly.
Ah....tequila slammers...the flavour equivilent of a thermonuclear explosion....fun......Many mighty hangovers from them.
I still can't enjoy G&ts after gettin g a 2 day hangover courtesy of those and rum&coke, learnt my lesson never to mix spirits. That was a bad, bad night. Lets the few bits i remember.