Wtf
name, noun, phrase, slang ·Moderate ·College level
Definitions
- 1 Initialism of White's tree frog. abbreviation, alt-of, initialism
- 2 A bafflingly bad or unwise design decision. slang
"I think coercing numbers to booleans is a WTF - 0 should not be evaluatable as a boolean, it should be a type mismatch."
- 1 Initialism of what the fuck. Internet, abbreviation, alt-of, initialism, slang, vulgar
"I've READ them; I know what all the words are. I still say, "WTF, over?" Someone's playing with our heads on this one, but what's all the word stew?"
- 2 Alternative letter-case form of WTF. Internet, alt-of, slang, vulgar
- 3 Where the fuck, why the fuck, when the fuck, or who the fuck. rare, vulgar
- 1 Initialism of World Taekwondo Federation. abbreviation, alt-of, dated, initialism
"Likewise the WTF says they are the official Tae Kwon Do organization because […]"
Example
More examples"I've READ them; I know what all the words are. I still say, "WTF, over?" Someone's playing with our heads on this one, but what's all the word stew?"
Etymology
(programming slang): Originated on The Daily WTF, a humorous blog dealing with real-world examples of bad programming.
Related phrases
More for "wtf"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.