D.J. Fluker is expected to be a first-round pick during Thursday night’s NFL Draft and the Giants could make him their selection at No. 19, given their need for a right tackle. Fluker, though, gained some unwanted notoriety in the days leading up the draft and has that landmine-filled valley called Twitter to blame. Fluker on his Twitter account (@DJFluker76) on Monday night posted that he took money from agents while playing at Alabama: “Yea I took $ n college so wat. I did wat i had to do. Agents was tryin to pimp me so I pimped them. Cast da 1st stone.’’ Was that really Fluker? “Hacked account,’’ Fluker’s agent, Deryk Gillmore, told The Post.