Butter Jacket 

Undesirable fat on a man, especially on the upper body.

The bouncer was clearly a strong-looking man, even though he had on a 75-pound butter jacket.

Butter Jacket by William Dean A. Garner April 25, 2011

jacked up on butter 

A term used when you eat so much mother fuckin better that you preform a persevere that involves ripping the butter sticks out of your asshole than deepthroughting them until you choke and die

Yo that fag just got jacked up on butter!

jacked up on butter by Ppinme69 March 19, 2015