Tony Buzbee Going After Jay-Z Lawyers for 'A Lot' of Money Over Dismissed Lawsuit

3:09 PM PT -- We confirmed this afternoon that Jay-Z and his legal team have filed a notice of appeal with the court over today's ruling ... so, the fat lady can pipe down for now!!!

Tony Buzbee is taking a victory lap around Jay-Z ... because after a judge dismissed a lawsuit Jay filed against him, Buzbee told us he's planning to go after HOV's attorneys for a lot of money.

Here's the deal ... Jay-Z was suing Buzbee for extortion and defamation, until a California judge stepped in Monday and tossed the lawsuit out of court.

Buzbee's now licking his chops, telling TMZ ... the case was dismissed "in a lengthy, well-reasoned opinion" and he will now be asking for "a lot" of money for attorneys' fees for "defending against a meritless case."

Tony adds ... "We have a long history of winning. We won't be deterred in our important work."

Alex Spiro's law firm represented Jay-Z in his lawsuit against Buzbee -- which was filed last year after Buzbee filed a separate lawsuit claiming Jay-Z raped a 13-year-old girl alongside Diddy -- and Spiro tells TMZ ... "We are surprised and disappointed by this ruling which turns on the misapplication of California law on the admissibility of the investigators' statements."