parade of horribles (plural parades of horribles)

Noun

1.A parade featuring a progression of people wearing comic and grotesque costumes, commonly accompanied by floats and models representing monsters.

2.(law, informal) Any rhetorical device presenting a series of terrible results that notionally might follow from an act, instead of confining the argument to the explicit terms of any applicable law.

See also

• fearmongering
• catastrophism

(Definition from Wiktionary, “Parade of horribles,” https://en.wiktionary.org/wiki/parade_of_horribles)