Know what it means to “spin a dit?” Or to be in “a drop of roughers?” This comprehensive guide to the humorous and colorful slang of the British Royal Navy explains it all in layman"s terms. Compiled by a decorated ex-Royal Marine surgeon, it contains often-hilarious examples of common usage, useful cross-references, and comic illustrations by Tugg, the popular cartoonist from the service newspaper Navy News. Jackspeak is essential for anyone with an interest in the Royal Navy--or who just enjoys fun wordplay!