rig bag 

someone who is constantly bitching about something; derived from the language Jag

"Quite being a damn rig bag all the time you little douche."

rig bag by Jake January 10, 2005

rig-bag 

Just as the name suggests, it's the place where the needles are kept.

Simon told Hector, "Don't go fucking around under there cause you'll get stuck. See my rig-bag is under there somewhere and you may very well light on it".

rig-bag by Nikki Stixx June 4, 2019