1 definition by junbeh
essentially someone who looks beefy in a tshirt, fills the sleeves, but is non-the-less a fat guy in reality. Hundreds of shirt fillers go to your local gyms.
girl: "that guy is jacked!"
Boy:"no actually, come beach time you would realize he is just a shirt filler"
Boy:"no actually, come beach time you would realize he is just a shirt filler"
by junbeh May 14, 2012