Tobey Maguire “was the worst tipper, the best player, and the absolute worst loser,” according to the woman who organized the notorious celebrity poker ring the actor partook in frequently, painting the respected actor as petulant and elitist, with a perverse sense of humor.

Molly Bloom, the stunning 36-year-old Colorado native behind the game that also involved Ben Affleck and Leonardo DiCaprio, has published a memoir about her involvement called “Molly’s Game,” in which the purported "Poker Princess" dishes the dirt on the Seabiscuit hunk and his bad boy behavior at the poker table, and beyond.

Key excerpts from the book are featured in the new Vanity Fair, such as one instance in which the Spider-Man star ordered her to “bark like a seal who wants a fish” for a $1,000 chip. Bloom recalled that he told her, “I’m not kidding. What’s wrong? You’re too rich now? You won’t bark for a thousand dollars?”

Despite Maguire’s repeated insistence she make like a seal and bark, in an effort to humiliate her, Bloom stood her ground in the uncomfortable exchange. She finally told him, “I’m not going to bark like a seal, keep your chip.”

Maguire’s reaction? According to Bloom, “He gave me an icy look, dropped the chip on the table and tried to laugh it off but he was visibly angry,” prompting a buzz about his awkward behavior after he left.

Maguire demanded all games he partook in involved a shuffling machine called the Shuffle Master, designed to “to deliver a fair, random shuffle every time and increase the speed of each game.”

In one instance, she wrote, the multi-millionaire actor demanded he pay her a $200 rental fee for use of the device at the games.