Something that you will eventually get and continue to get once you become a Marine. Getting the "big green
weenie" may include
such fine events as: getting fucked with duty
on a particularly important weekend, getting in trouble for some small petty shit while being in garrison, getting stationed at a shithole like 29 Dumps.
The "big" represents the big bad Marine Corps
picking on the little guy, the Marine. The "green
" represents the true color of the Corps
. The "weenie" represents getting fucked