Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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3
Often abbreviated to jiff...same definition
e.g. Simon had a quick jiff on the dancefloor while his mate was at the bar
by Lord McMenace of Pantinghame February 24, 2003
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4
Breakfast for the lazy and/or time-crunched; consists of an Eggo waffle smeared with Jif peanut butter, eaten quickly over the sink and washed down with milk directly from the carton. Pathetic, yet satisfying.
"Dude, did you get to eat breakfast this morning? You look tired."

"Yeah, man, I slammed a Jiffle before I got here."
by Ultradave November 11, 2007
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Andy Jiffled her outside the club whilst his friends looked for him inside.

A jiffle is kissing someone so no-one can see you, or in a "Sly" Manner.

You cannot jiffle someone you are going out with
by Simon February 24, 2003
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6
When a young woman places a jar of JIF peanut butter on top of her head you may place one erect weiner directly into the creamy compound, and then place your freshly covered peanut butter cock between two slices of wheat bread and make her eat it as she would a thanksgiving dinner.
My girlfriend gave me jiffle last night, to be honest it ain't bad.

Girl lemme sauce them grain and give me a jiffle.
by Dr.. D November 17, 2015
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