uh... that title... don't search for what the hell a "Beeg" is. apparently this was just sloppy spelling for beef

Beeg is just a respelled version of "big" ("ee" for /i:/). Apparently it is also a name of a certain questionable website (I didn't know!), but it is a common enough word that such unfortunate conflicts are to be expected.

You can simply check Wiktionary, like you can with most words.