Panda B is a fictional street drug named by a format of the likes of "Special K" and such so that it may resemble the name of a real drug. It was likely formulated as a result of public school officials needing a "control question" in order to determine if students were being sincere in their answer choice by asking if they had done a fictional drug in the past month.

Since it has typically been used only as a form of ridicule against the school board that created such a randomly thought-out fictional drug.
Guy 1: Man I feel like shit today...

Guy 2: Lay off the Panda B, brah
by Panda Bro October 7, 2010
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Panda B is a fictional street drug named by a format of the likes of "Special K" and such so that it may resemble the name of a real drug. It was likely formulated as a result of public school officials needing a "control question" in order to determine if students were being sincere in their answer choice by asking if they had done a fictional drug in the past month.

Since then, it has been typically used to refer to various non-drugs that are dealt among students, such as candy or other quantities of consumable things. It is also used as an excuse for acting high or drunk.
Guy 1: Man I feel like shit today...

Guy 2: Lay off the Panda B, brah
by Panda Bro October 7, 2010
Get the Panda B mug.