A term in which you call your friend when they are acting in a ridiculous manner that is inbetween a dick and a vagina
Bart, you're being a nipple.
by Fifty Shits of Grey May 16, 2015
The act of taking a picture everyday of your shit for 50 days in a black and white filter. Preferably when posting on instagram or snapchat to friends.
After this ample amount of Indian food, I think it's time to take on the fifty shits of grey challenge.
by Fifty Shits of Grey May 05, 2015