X

From Frikipedia

A measure of how much beer you have drunk. For example, if you have consumed 2 pints of Wadworth 6X, you have drunk 12X. Alternatively, you could reach 12X by drinking 3 pints of Castlemaine XXXX. Frikipedia reccommends the former method.

One particular ginger gentleman once combined the two to create 5X. This was bebby.

Drinking beer is known to improve your productivity by an equivalent number of ecks.