gains goblin 

A term used to describe a person or time commitment that interferes with one's potential to cultivate mass.

Yo, kevin be actin like a gains goblin when he wastes my time at the gym.

gains goblin by Brodin69420 August 26, 2015

Gains Goblin 

A person that stops a person, friend, Bro from obtaining their gains.

Joud, you ate my protein bar and hid my beef jerky! You're a Gains Goblin!!

Gains Goblin by Joud Rahal June 25, 2019