Noun
whodunnit (plural whodunnits)
(British spelling) Alternative spelling of whodunit
Bowie School Resource Officer Andrew Poole helped the third grade student at Bowie Elementary investigate a whodunnit Thursday. Source: Internet
From there, the film gearshifts into a tense whodunnit where Liz and Kate’s nerdy son (Keith Gordon) turn amateur investigators, convinced that one of Dr Elliott’s patients is responsible for the murder. Source: Internet
Ladykillers (1988), was a 'whodunnit' murder mystery involving the murders of male strippers by an unknown female assailant. Source: Internet
A Murder Mystery — “Another hilarious, unexpected, interactive, live, comedy whodunnit!” Source: Internet
A glitzy Agatha Christie whodunnit, Queen Victoria's sizzling love story and polar bears to melt your heart. Source: Internet
I think they're just two different ways of presenting a mystery, both with their own Aha! moments and the reader can still try to figure out whodunnit. Source: Internet