To have a thorough understanding of a subject. The word comes from Robert Heinlein's "Stranger in a Strange Land," and it means "to drink" in Martian. Of course. But more specifically in the book, it meant to take something in so thoroughly that it becomes part of you.
Grokking the GIMP
GIMP is a sophisticated paint and image editing program (see GIMP
), and this book title means "Thoroughly Learn GIMP." (Image courtesy of New Riders Publishing, www.newriders.com)