look up any word, like sex:

1 definition by i-r-squared

 
1.
A bulb is somebody who has difficulty forming thoughts and sentences on his own, yet insists on doing so on a public forum.

(by @cgawker on Twitter)
A: "Haaaaaiiiiiii sweettttttyyyyyyyyyy!"
B: "Dude, that A is a total bulb."
by i-r-squared August 12, 2010