Paraphrased from the
words of Jeph Jacques of Questionable Content:
The sharpest lightbulb in the
box... being the
broken one of course.
end paraphrase.
A seemingly flattering compliment that is meant to be explained to the victim after they thank you.
A: You know what? You are the sharpest
bulb in the
box.
B: Awww, thanks that means a lot, :)
A: The sharpest one being the
broken one of course.
B: Hey!