Someone lightweight enough to ride in a rowboat with, esp. on a date.

(i.e. not a fatty.)
Phyllis: Michael, I want to set you up with my friend.
Michael: Hm, what's she like? Is she rowboatable?
Phyllis: What are you asking?
Michael: I think I'm being very clear what I'm asking. Could an average sized rowboat support her without capsizing?
(pause)
Phyllis: No.
(Michael walks away, disgusted)
by Jimmy D. April 20, 2008
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While motorboating a woman's breast you yell out "Oh no! We're out of gas. We have to paddle the rest of the way." Then you stick your arms and hands straight out like oars and smack her breasts back and forth.
Check out her tits. I wish I was rowboating them.
by CockFrobbler October 13, 2011
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A wrigling and smacking of ones penis against a pair of nice breasts very quickly back and forth
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The act of female giving two handjobs and a blowjob simultaneously.
John: "Dude, that girl gave all three of us a rowboat."

Jacob: "Dam, what a whore."
by RowboatMan December 24, 2010
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Having simultaneous doggy style intercourse with 2 partners with the aid of a dildo attached to the back.
Dude, those chicks totally strapped a dong on me and we went at it rowboat style!
by Kaber July 26, 2005
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The act of a passenger riding in a vehicle leaning outside of an open window performing a paddle gesture with one's arms while the driver passes a car going down a road.
Dude, rowboat this car to the right while I make the pass.
by thevillager December 17, 2009
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