When you're through with complaining about all the work you have and you just plow through it because it needs to happen. Can occur as a day, a certain block of time, a week, etc. Often seen in Facebook statuses towards the end of the semester.
GSD is brought about through severe bout of procrastination, not getting work done on a regular basis, therefore needing to set aside long amounts of time to disappear and get shit done.
Isaac is GSD from 8-12; no parties tonight.
Brittany has hereby declared this to be GSD Week. Let the games begin.
Used mainly to prevent teachers and parents to overhear you swearing in school or another formal setting, to spice up a conversation every now and then, or in text messaging conversations with the character count running low.
Rob: "I'm GSD"
2. I can't wait to go home and GSD.
"Oh I can't, I have to GSD" - Bob