yellow jacket

noun3

1. •
   (US) A predatory wasp with alternating black and yellow stripes around the abdomen, usually of the genera Vespula or Dolichovespula.

   • Yellowjackets (Vespula spp.) and paper wasps (Polistes spp.) are beneficial insects in that they are predators of house flies and insect pests that damage landscape trees and crops. — 2002
2. •
   Synonym of yellow vest (“member of a French protest movement which started in late 2018”).
3. •
   (slang) A capsule of pentobarbital sodium (or sometimes other barbiturates), especially when used as a recreational drug.

   • “Whatchu got, man?” / “Reds, bennies, dexies, yellow jackets, demmies.” / “Yeah, demmies're good shit, man. I pay you. Fuck. I got money. I'm hurting inside. Got beat up. Where my money?” — 1998