yellow jacket

Short definition from Wiktionary

Noun

1. 1
   A predatory wasp with alternating black and yellow stripes around the abdomen, usually of the genera Vespula or Dolichovespula.
2. 2
   A capsule of pentobarbital sodium (or sometimes other barbiturates), especially when used as a recreational drug.
3. 3
   Synonym of yellow vest (“member of a French protest movement which started in late 2018”).
4. 4
   Alternative form of yellow jacket.