A person who participates in Live Action Role Playing. (L.A.R.P.) Geeky even for geeks.
You see that guy in the trench coat and fake vampire teeth. He's a larpy.
The feeling of fatigue and/or lethargy succumbing to the point of disability as a result of ingesting certain chemical compounds.
After doubling the prescribed dose of the codeine hit, she was so larpy that she used the building’s marble façade as a pillow.