punchline
Punchline (noun) means the final line of a joke or story, which delivers the twist that makes it funny. Example: “He fluffed the punchline and the whole table went quiet.”
How to use punchline
Learner’s notesIn plain EnglishThe bit at the end of a joke that makes people laugh.
Informal to neutral; common in journalism and criticism as well as everyday speech.
Do not confuse punchline with tagline; a tagline is an advertising slogan.
Trace the full origin ↓Fill the gap
Can you complete this real example?
He fluffed the _____ and the whole table went quiet.
Etymology
A compound of punch, in the sense of a sudden forceful blow, and line, a line of spoken material.