When you eat something with too much green pigment in it and your fecal matter comes out green. May or may not also be hairy.
Friend:"Yo you wanna try some of this guacamole?"
You:"Nah man last time I ate that I got da grinch shits"
Child:"What happened to all of the christmas presents?!"
You:"Well I had mad grinch shits last night, so it probably came back and stole christmas."
The Urban Dictionary Mug
One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.
Buy the mug