Tom Wolfe's name is now so well known that the cover of his new collection bears just that: Tom Wolfe's name. No title, no picture, just the name, with an elegant design twining through it. Flip the thing on its side and you'll find that its title, Hooking Up, gives little idea of its function. But investigation soon reveals an oleo of reportage, fiction, and acrimonious name-calling. The latter, of course, makes for the best reading. In "My Three Stooges," Wolfe reviles the three big men of American letters--Updike, Mailer, and Irving--who cast aspersions on his second novel. Apparently, "the allergens for jealousy were present. Both Updike and Mailer had books out at the same time as A Man in Full, and theirs had sunk without a bubble. With Irving there was the Dickens factor." Wolfe gets in a lot of figures about what a big hit his book was with the reading public, and a few gentle reminders about other writers who were big hits of their times--little guys like Twain and Tolstoy. Equally bitter fun are his two famous 1965 satires from the New York Herald Tribune. As always, Wolfe's titles lead you a good way into the actual stories: "Tiny Mummies! The True Story of the Ruler of 43rd Street's Land of the Walking Dead!" and "Lost in the Whichy Thickets: The New Yorker." Wolfe, clotheshorse of note, gets off some of his best cracks at the expense of New Yorker editor William Shawn's fashion sense: "He always seems