shroom
noun /ʃruːm/,  /ʃrʊm/
  /ʃruːm/,  /ʃrʊm/
(informal, especially North American English) (also magic mushroom British English or becoming old-fashioned, North American English)
- a type of mushroom that has an effect like some drugs and that may make people who eat it hallucinate (= see things that are not there)