"Changer" (pronounced "shaynjaa") is an expression widely used in east-germany (mainly Saxony) by teens which are really really really (and I can not stress this out enough) really bored. It is mainly used when just anything around the user changes, and since everything is relative, as Einstein said, everything changes all the time, thus this expression can be used all the time. It is preferable, however, using it when something noticeable changes, not when something unimportant changes (see example 2) because if you do, everyone will hate you.
The word is quite popular, should however not be abused...

A pubic hair piece. A toupee for the pubic area/genitals. In the 1700’s when mercury was used to treat sexually transmitted diseases (Gonorrhea or Syphilis) one of the side effects was the loss of pubic hair. To disguise this condition, that was not cured by mercury, a Merkin was employed.

A Chinese 1337 h4x0r.

A mix between chill and banger. Both relating to music. It's a song that's relaxing but gives you energy at the same time. Pronouce the g like in "goggle". Kind of music you listen to when you're on exchange in California on a roadtrip to Yosemite and you feel like you're exploring something new even though millions of people have done it before you.

ballin' ass diamond stud earrings, the bigger they are the better.

A universal type exclamation which in its literal form means 'laters'.
When said in a comical voice, extra emphasis is achieved.

Also used to describe something/one as untrue/false in a similar way to bollocks or bullshit.

A person who plays CS badly