An obligation of or relating to dog ownership, often causing one to miss social engagements.
I'd love to attend your day outing to the hot springs, but I'm afraid I have a dogbligation to my large, anxious great dane. She simply can't abide the kennel for overly-long stays.
Simple: A noob that is obligated to do noobish stuff.
Broken down: Someone who lacks intelligence or common sense (i.e., noob) and has an obligation of being just as dumb as they seem.
Man, you're such a noobligation, you can't even spell 'amazing' correctly.
Person: Did you see THAT noobligation? Every day he comes into the lunch room thinking he's gonna get some food, and every day they tell him he still doesn't have any lunch money.