Top definition
A nerd who thinks he's all that. Derived from "Da main thing"
What the hell, that nerd just bagged me out, what a Dmain.
by Slickery February 02, 2011
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