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10.
Slang for the Steel Reserve 40 oz beverage, also called High Gravity, and 211. Steely Dan is by far the foulest tasting 40 commonly available on the market.
Steely Dan, like Mad Dog, is consumed by members of the Trinity KKD fraternity because only real men would willingly submit themselves to a Steely Dan.
You ready to meet Steely Dan?
Oh yeah, bring it on, I'm going to make Steely Dan my bitch!
by IHaveMetalTeeth April 24, 2007
 
1.
(1) proper name of a steam powered dildo from the novel "Naked Lunch" by William S. Burroughs.

(2) jazzy rock band from the 70's, most of whom's subtle lyrics are about heavy heavy drug use, ludacrus sex and suicide. curiously, a favorite of house wives everywhere for their soft tones and smooth vocals.
by G July 21, 2003
 
2.
n.
1) Large Metal Dildo
2) Jazz/Rock group, often considered to be an actual person by retarded people.
1) Mary is strapping on a rubber penis: "Steely Dan III from Yokohama," she says, caressing the shaft.
2) "That Steely Dan guy is awesome, I love all his albums"
by C:\>213\ February 01, 2006
 
3.
A Massive Metal dildo, sometimes double-headed
Jorge: "Holy Shit it's a Steely Dan!"
Tim: "I'll use that on my girl tonight!"
by BlackDogz January 09, 2009
 
4.
1) A jazzy classic rock group

2) Often mistaken by retarded people as one person.
2) "I love that steely Dan guy. He's an amazing artist"
by Willburto August 10, 2009
 
5.
Feeling two very strong emotions at the same time, one of which is always sadness. In honor of the band's ability to combine really depressing lyrics with peppy jazzy music.
My massive hangover made my morning intensely Steely Dan. That bar hop was epic!
by mauimattipus September 10, 2011
 
6.
When a band has a vibe that is one of a kind.
"Man, this band is awesome!" "Yea, such a Steely Dan, too bad they are only in town for 1 night."
by Shep Shep October 06, 2008
 
7.
a Marino. "Steak tips, barabaque sauce, Mayo, cheese, and a bun."
dude, i totally munched on a delicious steely dan the other day.

Oh man, this steely dan im eating is totally not a large metal dildo.
by Sneakers O'Toole January 07, 2008