1 definition by BigGamerDara

OGA

An actual crackhead. He doesn't do anything else except smoke and eat. almost a hundred percent of the time he is high off his ass in some other dimension, he'd do anything to get high as fuck. If you are called an OGA you are most likely never sober.

"Hey man, you've been a fucking OGA for three months now."

by BigGamerDara January 29, 2019