Top definition
To have big muscles or to be all "jacked up" but with all natural training, and without the aid of performance enhancing drugs and steroids.
Person 1: "Look at that dude! He's huge! He must be on steroids!"

Person 2: " No man, he's an all natural beast! He's legally pumped!"
by nicholasbrunello January 20, 2010
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug