"Man, those buzzers last night were shite. I'm so on the skag this morning.
"I'm so skaggy right now it's ridiculous. Seriously, just kill me. Savage buzz last night, though."
Verb form: to skag
Noun form: a skag
Can also be used as a verb: A person might be skagging if they are eating ho-hos while watching soap operas, or holding a baby while smoking a cigarette.