(figuratively, slang, uncountable)Essence, content; the important part of a document or project.
(slang, countable or uncountable, plural: beefs) A grudge; dislike (of something or someone); lack of faith or trust (in something or someone); a reason for a dislike or grudge. (often + with)
“She bought fresh beef from the butcher only on occasion, usually to make Papa's favorite meal of boiled beef, salt potatoes, green beans, and horseradish sauce.”
“He's got a bit more beef on his bones now, but he's lost none of his cheerful, boyish looks.”
“Let's go all out and put some beef into this!”
beefwood
Any of the Australian trees having timber resembling raw beef