wdym
Wdym (abbreviation) means What do you mean? — typed to ask someone to explain what they have just said. Example: “wdym you're not coming, we booked the table.”
How to use wdym
Learner’s notesIn plain EnglishText shorthand for "what do you mean?".
Lower case, no question mark half the time. Depending on tone it can read as genuine confusion or as a challenge, so it lands harder in an argument than the full phrase does.
wym is the shorter variant of the same phrase; wdyt is different again — "what do you think?".
Trace the full origin ↓Fill the gap
Can you complete this real example?
_____ you're not coming, we booked the table.
Etymology
An initialism of what do you mean.