"Mailman" is a sexual term used when the passenger (a man) receives road head from the (usually) female driver. The man must take control of the steering wheel while the woman does her business.
John: Hey honey, I feel like pulling a Mailman
Sandy: Oh, alright. Just this once.
*John steers while sandy leans over*
by sean sean May 23, 2007
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When you move the the passenger seat while driving and masturbate, extra points for getting it out the window.
"Whoa! Did you see that guy doing the mailman!?"

"Yeah, nice distance!"
by Gabe K March 2, 2009
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verb. To steer the car from the passenger seat, usually while both the drivers hands and attention are to be occupied. (usually lighting a fatty or bowl.

It's allways propper to thank your passenger for doing his duty.
Driver:Mailman!
(passenger then leans over and takes the wheel with one hand)
*lighter clicks* Puff puff pass.
Driver:Thanks Bro.
by bradwerd June 4, 2006
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When a lover mails there sperm or juices in the mail to another person.
My girlfriend is awesome and mailmans me all the time.
by Caption cool April 19, 2009
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(n) when you jizz in someone's mailbox and then watch them discover your "gift" the next morning
Guy 1: Mr. Jones gave me the finger, so I gave him a mailman.
Guy 2: Sick dude!
by Taylor Zelitsky June 3, 2007
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Mailman is in reference to a penis. It's carrying two sacks of "mail".
My mailman is large.

My mailman is about to come deliver you something special.

You want some of my mailman?
by 4x4mudslinger@yahoo.com September 28, 2017
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A man who always delievers in the clutch.
Sports-related mostly.

This could also refer to Karl Malone...but not anymore since hes washed up.

Mailman-Big man on Campus
"Hey Billy, did you know they call me the mailman because all i do is deliever babyy.
by The Prime Time Performer April 10, 2009
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