A one-liner is a short, witty, and memorable saying. It is often used to make a point or to get a laugh. The best one-liners are often clever and unexpected, and they can be used to great effect in conversation or public speaking.
There are many different types of one-liners, but some of the most popular include jokes, puns, and insults. Jokes are typically funny stories with a punchline, while puns are plays on words that can be either funny or clever. Insults are typically short, sharp, and designed to put someone down.