Bulking Season 

The season in which someone eats lots of food in an attempt to gain weight and thereby increase their muscle mass

Umair: Yo boyz, its BULKING SEASON!!!!!!!

Everyone else: What???

Umair: BULLLLLKKIIIING SEAAAAAASON

Bulking Season by RavennPrince July 27, 2016

Bulking season 

Something jocks do to gain more muscle mass by gaining more weight.
Also sounds like a gay porno film.

Oscar : ITS BULKING SEASON BOYSSSS!!!

Nick: Shit!! Where did you find my stash?!?

Bulking season by NickDaSimp November 2, 2020

Bulking Season 

The season in which someone eats lots of food in an attempt to gain weight and thereby increase their muscle mass

1: Dude, it's bulking season

2: Every season is bulking season.

Bulking Season by L3wis June 11, 2013

Bulking Season 

Usually used to describe the act of intentionally gaining excessive weight in order to cultivate muscle mass later during weight training

In an office enviroment, it is used to describe an abnormally extreme amount of trash employees are generated daily, an unusual volume of food being consumed and discarded that is so extreme every delivery driver in town is showing up once or twice daily; the opposite of an office Weight Loss Challenge

Manager: This year H.R. is implementing Bulking Season rather than trying to push another Weight Loss Challenge on us. Feel free to bring your own personal full-size fridge, a box of trash bags, and a can of air freshener. Go Big Or Go Home, people!

Employee: No way we can beat those women in H.R. I heard they're so large that they can't see their own office chair without a mirror.

Manager: No comment

Bulking Season by slipandslur October 30, 2019