Top definition
An abnormally large piece of shit
"I just took an ill dersa it clogged my toilet."

"Yo man I ate mad fiber cereal, the dersa I just took was epic."
by kev higs March 03, 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
T-shirt icon

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