Tidy

From the Wenglish dictionary of Valley-speak (as spoken in the valleys of South Wales, that is, rather than the 80s Californian teenspeak. Though both Gwent and Orange County have a Newport), comes this vernacular equivalent which correctly references the original:

All jaw: All mouth, boastful, lazy, “bullshitter”. “He’s all jaw he is, all mouth and trousers, but he’s too lazy to get out of his own way.”