Stashed in: Words!, Sloth!, Flocks!
Pandas are bears.
So a group like this is actually called a sloth of pandas.
A Sloth of Pandas.... hmm...
Fun with words for groups of animals: http://www.rinkworks.com/words/collective.shtml
Panda Dog ... PANDOG!
Jumping Panda gif by opalfiredragon on deviantART
Commonly used abbreviations on Imgur, Reddit, and Tumblr.