Top definition
When a clueless person or someone with low intelligence get's conned.
Seller: Hey, you wanna buy this plasma TV for $1500?
Buyer: Sure, looks good, I'll take it!
Person who over heard this deal: Wow, I can get a plasma TV for way less than that, he's defo a knobcon for sure
by ugi1ugi April 28, 2009
Get the mug
Get a Knobcon mug for your friend Georges.