RapReviews argued it isn't "dropping any jaws or widening any eyes." Rolling Stone described this song as "dance-music dis." In a review praising Encore's "edginess," Steve Jones of USA Today cited the song's mocking of the Michael Jackson child-molestation scandal. Alexis Petridis of The Guardian, however, wrote: "[Eminem's] plan appears to involve belching and making fart noises, which, with the best will in the world, won't suffice." Kelefa Sanneh of The New York Times wrote that song "unfolds as a series of puzzlingly unfunny jokes." Stylus Magazine was negative as well, calling it "Em’s brand new tendency to bite himself." The Austin Chronicle was a bit negative as well: "Where 2002 smash 'Without Me' was bitingly clever, Encores carbon copy 'Just Lose It' is puerile and embarrassing, even though he quotes Beavis and Butt-head and does a wicked Pee-wee Herman." Slant Magazine said that the song "was so derivative that it had to be a joke—even the song’s title seemed to mock the Academy Award-winning 8 Mile theme song that elevated the Great White Rapper to a whole new level of acceptance (as if he hadn’t already transcended nearly every other boundary in pop culture). Not only is 'Just Lose It' the worst song on Encore, it’s easily one of the most annoying songs of the year (credit Em’s incessant Pee Wee Herman impersonations and tired attacks on Michael Jackson)."
