Glansberging 

The act of dining out alone. Referring to the cult classic film Superbad.

I saw Jerry Glansberging it at IHOP today.

Glansberging by SGlansberg1776 July 28, 2014

Glandsburging 

A person who tends to hang out by himself or is forced to hang out by himself. A lunch pack may or may not be involved. This also refers to a person who locks himself in his room to smoke. Also may involve a constant pattern of afternoon sleeping instead of doing other activities.

Matt is Glandsburging again. OR: I havent seen Lyle in a long time is he Glandsburging again?

Glandsburging by Boris Stevenson April 3, 2009

glansburging 

When someone eats lunch or dinner by oneself, usually in a crowded cafeteria or restaurant.

From the infamous 'Steven Glansburg' scene in superbad.

"Are you gonna make me eat my lunch by myself like Steven Glansburg!?"

I caught Ross 'glansburging' in Nando's again.

glansburging by PhantomSpunker December 17, 2015