Gen Alpha slang · Abbreviation
idek
Meaning
Idek is Gen Alpha slang for "I don't even know".
Where it came from
Dictionary.com records it, with social-media examples from 2017 and 2018; Wiktionary notes it is built on idk. No source gives a first use.
Tone check
Harmless.
Checked against: Dictionary.com, IDEK; Wiktionary, idek.
Added to this dictionary 2 November 2026
Used in a sentence
"idek what happened"
Peak: 2017–2026
Safe for adults to use
Related words
Keep decoding
the ick
sudden irreversible revulsion toward someone
eepy
sleepy, in a soft and slightly childish way
ngl
not gonna lie — a softener before an opinion
serving
delivering a look with confidence
long
tedious, more effort than it is worth
heavy
strongly agree, absolutely
hot take
a deliberately provocative opinion
gyatt damn
an exclamation of surprise