Like it or not, you’re human. This means that at one point or another you use slang. It’s not to look cool, per se, but a sort of verbal shorthand or way to identify with a certain group. But because we use it all the time, slang constantly evolves, adapting its meanings and usage according to our tastes and needs. Many slang words you’ve likely already used today have some pretty surprising origins.
Nowadays, if you defend your favorite comic book or sci-fi franchise on a forum with too much fervor, you are ruled a fanboy. However, geeks everywhere can rejoice knowing that this word was first used to describe their archenemies – jocks. Right at the beginning of the 20th century, the word was used to refer to sports fans, although back then it wasn’t necessarily a bad thing.
In its strictest sense, booze is supposed to mean a potable liquid, but it is used as slang for alcohol. However, the OED again lists its usage much farther back than we would expect. It can be found in a compendium of slang words dating all the way back to the mid 19th century and it is also found in a court report from 1896 printed by the Daily Telegraph. Supposedly it is derived from the Middle Dutch word “busen” which means “to drink heavily”.