Top definition
a newbie obese person who pretends to love the gym and always boasts on how thin he or she used to be and how hard it is to for them to go to the gym nowadays.
Tony just got fatter and is always complaining about how hard it is for him to go to the gym and keeps showing off his old photos of when he used to be able to lift, all while sitting at a bar drinking beer. Tony is a gym bluff, he likes to say he goes to the gym but never really does and is always at the bar.
by mistermaster652 April 14, 2014
Get the mug
Get a gym bluff mug for your barber Jovana.