Dictionary

A rapidly executed freehand drawing that is not intended as a finished work, often consisting of a multitude of overlapping lines.

A rough design, plan, or draft, as a rough draft of a book.

A brief description of a person or account of an incident; a general presentation or outline.

A brief, light, or unfinished dramatic, musical, or literary work or idea; especially a short, often humorous or satirical scene or play, frequently as part of a revue or variety show, a skit

To make a brief, basic drawing.

Example: I usually sketch with a pen rather than a pencil.

To describe briefly and with very few details.

Example: He sketched the accident, sticking to the facts as they had happened.

Sketchy, shady, questionable.