What is Nach?
1.
A substitution for any word. Also can just be used to express emotions.
Hey Nach did you nach the nach?
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2.
A nicer way of saying that someone is fat or overweight.
"That guy's a nach!"
"Wow! You're sure nachin' up(getting fat)!"
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3.
nach is a fat dude from tr.heim
he always drinks coke and use a lot of what they call "Snus"
He is always happy, and he likes to rup his nippples. (his nipples are always stif btw! =)