Top Definition
Typically a phrase used for typically novice bodybuilders or gym rats who only work upper-body giving them the appearance of a light bulb. They tend to over-compensate for aesthetics neglecting their legs sometimes entirely. This occurs until enough people have told them their legs look tiny, and they begin to do squats and other leg lifts.
"Have you seen how huge John has gotten?"

"Yeah but it's all upper body, he's suffering from human light bulb syndrome"
by halfstable March 20, 2012

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

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

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt