Handshake

[Oralee]

In the real world, a handshake is a customary greeting between two people. Similarly, a computer handshake serves as a greeting between two computer systems. It is commonly used to initialize a network connection between two hosts.
A computer handshake may be completed between any two systems that communicate with each other on the same protocol. The two systems may be a client and server or simply two computers on a P2P network. The handshake confirms the identities of the connecting systems and allows additional communication to take place.
Handshaking over a network is commonly called a 3-Way Handshake or SYN-SYN-ACK. A successful handshake involves seven steps:
When a system initiates a handshake, there are three possible outcomes:
The third outcome listed above is the only the one in which the handshake is completed. If a handshake is successful, the two systems can begin communicating and transferring (data) over the established protocol. Examples of protocols that use handshaking include TCP, TLS, and SSL.

[Lanell]

The [grasping] of hands by two people, as in greeting or leave-taking.
[Computer Science]. An exchange of signals between two devices when [communications] begin in order to ensure synchronization.

[Julian]

The most sacred form of sealing a deal.
A [mutual agreement] amongst two people to abide by clear and agreed upon terms.
Anybody who would break these terms is a [gigantic faggot], see [welcher]

[Justin Bieber]

Handshake - A type of [currency] used in the night life to pay for [undisclosed] services. Handshakes [come in] different denominations and sizes depending on the service and the hand.

[Ernesto]

[slang] for [jerking off]

[Raeanne Dimick]

a [medieval] [high five]

[Marquetta]

An act of shaking a persons hand with ones own as a greeting.

[Oralee]

Multi-channel order management solution that helps businesses manage online catalogs, inventories, orders details, reports, and more. A software product by Handshake

[Jessica]

a greeting, or an act showing that you have made an agreement, in which two people who are facing each other take hold of and shake each others right hand: