1. slang To eat (something) gluttonously or to excess. Often followed by "on." Once a month, my friends and I get together to pork up on pizza and watch cheesy horror movies. I'll just have a salad. I've been porking up too much lately.
2. slang To become fat or obese. He used to be one of the most athletic students back in high school, but he's really porked up recently. I need to start exercising again. I can tell I'm starting to pork up.
3. slang To cause someone to become overweight or obese, as by feeding them excessively or inducing them to eat. In this usage, a noun or pronoun can be used between "pork" and "up." We lived with our grandmother over the summer, and she spent the whole time porking up my brother and me with her rich home cooking. I've always used eating as a way of dealing with stress, so between getting fired and breaking up with my girlfriend, the last few months have really porked me up.
4. To add an excessive amount of government spending to some legislation, especially when that spending only serves local or special interest. In this usage, a noun or pronoun can be used between "pork" and "up." The politicians are being accused of porking up the most recent budget to cater to their constituents ahead of the upcoming election.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.