look up any word, like b4nny:
 
1.
n. 1. one who may easily become grouchy or grumpy, even if it is not that often; 2. one who is always grouchy or grumpy.
Anja was being such a Gary Grumpy-Pants because she got annoyed when Adrianna and Alanna wanted to slappa da bass for the picture.
by the girl from ipanema April 29, 2009