Beefy Farts 

A very distinct gastrointestinal discharge of air/gas of different content, methane is one of the prime constituents. Typical odour is created or manifested from consumption of certain foods such as broccoli, beef, and cabbage, cheese, as well as certain beers. While the processes involved in the digestion of such foods...and...the odour produced is not well studied, the odour is commonly recognized by the average citizen and acknowledged as a "beefy fart" by "slacker" types of the youth demographic in the majority and many others.

Damn, he must've had beef and cheese sticks with beer last night, those beefy farts were horrendous.
Fart, breaking wind, gas, assgass, blowing ass

Beefy Farts by Jeffrey W. M. January 31, 2006

beef farts 

That putrid and horrific meaty stink that only the lengthy digestive breakdown of beef can yield.

His beef farts were nauseatingly rank and hung in the room for what seemed like hours.

beef farts by Dr Bunnygirl February 24, 2019