Not My Home or a boarding school in Gill Massachusetts where a bunch of druggies, Asians, and kick ass jews go for "higher education" but really just for sports. NMH kids tend to be pretty crazy but what can you expect from a school that has 1 out of every 100 kids getting kicked out from drugs while the other 99 do it more secretly. The school itself is pretty great with some basic flaws but overall it's getting there.

When someone goes to the gym and spends 90% of the time on their phones scrolling through social media

Acronym for "nodding my head." Originated from the popular acronym smh, meaning shaking my head, but means the exact opposite. Rather than feeling disappointed, nmh means you're excited, pumped, or just plain happy.

NMH stand for Nodding My Head as a direct opposite of the popular abbreviation SMH, Shaking My Head.
NMH is often used to express approval or joy.

Abbreviation for the indie rock band "Neutral Milk Hotel".

A boarding school located in Gill, MA. Home of the Hoggers, NMH was founded by Dwight Lyman Moody in 1879. It's historical rival is Deerfield Academy.

Acronym for Need More Heroin. Usually used in sarcasm as in the example. Can also be used seriously. Fuckin teens, man.