When someone bites their fingernails, then they take a crap and the chewed up fingernails are sticking downwards out of a turd, like the spikes on a pineapple.
by JENN UHH FER January 19, 2009
 Get the Pineapple Turdmug.
Get the Pineapple Turdmug. by Sea Rat April 19, 2019
 Get the Pineapple turdmug.
Get the Pineapple turdmug.