I remember Jolt Cola [0] which was a super-caffienated cola drink, which I drank in the late 80s/early 90s when it was available in the UK (at least I found it in Edinburgh and Glasgow) from a few select delis that did US imports. Apparently a hacker staple in the USA, which is why we searched for it here...

0. https://en.wikipedia.org/wiki/Jolt_Cola