Formal:
* The comedian's set was full of witty observations and sharp witticisms that had the audience roaring with laughter.
* The writer's novel was peppered with witticisms, creating a humorous and engaging tone.
* His witticisms were often so clever that they left people speechless.
Informal:
* "I'm not sure I understand this new technology," she said, her voice dripping with sarcasm. "It's like a whole new language!" Her friend laughed, "That's a great witticism! You're really getting the hang of this."
* He had a knack for turning any situation into a witty remark.
* She was known for her quick witticisms, always ready with a clever comeback.
Remember: "Witticism" is a noun, so it will be the subject, object, or part of a prepositional phrase in a sentence.