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1.
Term used to describe one with seagull-like tendencies.

You can count on them to swoop in at pretty much anytime of the day and dig into what ever they can get their beaks on. Super greasy fellows. Often found lurking around public places looking for an opportunity to indulge in someone elses leftovers.
"Yo dude what happened to those hotdogs that I was about to cook up, they were in the pot two seconds ago?"

"...ummm I ate them I thought they were good to go"

"Man those were mine and how you gonna eat raw dogs, you've been acting like a Nelg lately... real musky"
by ¶ ╝◙∩Σ§ February 10, 2010
 
2.
an teenager who has issues.

"man whats that smell?"
"oh thats just nelgs"
by 999666444 April 03, 2008