Sentence examples for a dick from inspiring English sources

The phrase "a dick" is correct and usable in written English, though it is informal and can be considered vulgar.
It can be used in contexts where you are referring to someone in a derogatory manner or discussing male genitalia in a casual or crude way.
Example: "I can't believe he acted like such a dick during the meeting."
Alternatives: "a jerk" or "an idiot."