The act of having a threesome with your spouse and a relative.
Cletus, his wife Fran, and his cousin Patty, we're caught giving each other a Carolina handshake last night in their trailer.
by Anal Tart October 3, 2013
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One of the most highly anticipated social aspects indicative of the imminent end of the Coronavirus Pandemic.
As we look around we see that folks everywhere are resuming handshakes!
by Dr Bunnygirl June 14, 2021
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when a man/woman walks into a medical clinic, hospital, or nursing home and uses a comatose patient's hand to masturbate.
The best orgasm can be achieved through a Clinical Handshake.

clinical, hand, shake, clinic
by Blakers-29 March 2, 2012
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The dry humping of one man to another, usually unexpected by the recipient.
Hey did you hear that Johnny gave Jimmy the Atlanta Handshake when Jimmy was bent over?
by Lilslayer569 September 23, 2020
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Most often encountered in an office setting where new introductions or hand shaking is prevalent.

The precursor involves a man who urinates without washing his hands. Shortly thereafter, when this man is in a situation which warrants shaking hands with someone else, the other individual will be on the receiving end of a penis handshake.
Man 1 "I was taking a company dump the other day and I was peeping at other dudes... And this guy comes in, drains his lizard, and then walks right back out."

Man 2 "I'd hate to be the guy on the other end of that penis handshake. Fucking gross"
by phopey October 5, 2011
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Requesting another chance to shake hands due to a handshake mishap (e.g. missing and grabbing just fingers) on the first attempt. The handshake reset allows both participants to save face and also helps prevent the moment of unspoken awkwardness, outright ridicule or even death that usually follows a handshake mishap.
Guy 1: Yo what’s up man? Been a while (Goes in for a handshake and partially misses, grabbing just fingers).

Guy 2: (Moment of unspoken awkwardness) Uuuuuhhh yeah man............good to see you too.

Guy 1: Yo dude I fucking missed. Can we get a handshake reset on that?

Guy 2: Fuck yeah we can! Glad you asked for that or I was about to whoop your ass!

Guy 1: And I would’ve deserved it. (Handshake reset results in a proper handshake and everyone is happy!)
by JSnoop September 22, 2011
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The act of placing one fist in the vagina and the other in the anus simultaneously, and attempting to shake one's own hand.
This Eastern European woman asked me to double fist her, but she was too tight in one hole, so I had to use the other hole and gave her the old Ukrainian Handshake.
by ShamusAngus October 5, 2013
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