Abbreviation for "needle-dry handjob." Usually an act performed by girls no better than above average looking (or lower) who are often fake-drunk sluts. The end result leaves the victim feeling like his dick has been run through a wood chipper.
Bro A: Dude sick hu the other night, bet you got your dick wet.
Bro B: Nah man, awful NDHer. I got shredded, prob out of commission for a week.
Neue Deutsche Härte (New German Hardness) is a type of genre of music that has developed in Germany starting in the 90's. It includes bands such as L'ame Immortelle, Rammstein, KMFDM, Schweisser, and Oomph!