(NM)

(NM) is normally used in bios on social media sites like Twitter and Tumblr. NM stands for "Not Mine" and refers to the user's profile picture and/or profile header not belonging to them. HNM (Header) and PFNM (Profile Picture) is used for when the header or profile picture specifically.

(NM) Hello! I am a person! Welcome to my Account!

Hello! I am person! Welcome to my Account!
NM - Minor - Female

Lookuper

A person (usually a bottom) that prefers to have romantic partners that are taller than them. But if they demand that their romantic partner has to be over 6 ft (unless they are 6ft or 5'11 themselves), they are not a lookuper, they are an asshole.

"Man, it sucks being a lookuper when you're so fucking tall, I just want a dominant woman that would treat me how I'm supposed to be."
"Like the little dumbass slut I know you are?"
"Yeah."