Doi
/dɔɪ/noun
An informal interjection expressing that something is obvious or foolishly overlooked.
Did you know?“Doi” is generally treated as a playful variant of “duh,” whose modern popularity was strongly reinforced by the catchphrase “Duh!” in comedy and popular culture.
Etymological Timeline
20th Century
English
duh
“An interjection mocking an obvious statement or foolish mistake.”
Late 20th Century
English
d’oh
“A comic exclamation of frustration or realization, popularized by The Simpsons.”
Late 20th–Early 21st Century
English
doi
“A playful or dialectal alteration of “duh,” used to signal obviousness.”
Modern English
English
doi
“An informal sarcastic reaction meaning “obviously” or “no kidding.””