This'll help. I'm not sure if there's a European equivalent, but Everclear is a brand name for a very high-proof pure grain alcohol. It doens't have a unique flavor like vodka or tequila or scoth or bourbon, and in America, it's highly sought after by relative youngsters who like to put it in punches or mix it with sweet mixers. Folks get very drunk--and very sick--from Everclear. Here's a link I found. Apparently it's not sold in some states in the U.S., which surprised me. I live in Texas, and here it's easy to find.

http://www.webtender.com/db/ingred/71