Let's shake on it
Meaning
This phrase is used to signify agreement or the sealing of a deal, often accompanied by a handshake.
Origin
The handshake itself is an ancient gesture, a symbol of trust and agreement dating back millennia. Picture two ancient warriors meeting on a dusty plain, extending open hands to show they carried no weapons. This simple act evolved into a universal sign of amity and, crucially, agreement. When a deal was struck or a promise made, sealing it with a handshake became the physical manifestation of a verbal contract. Thus, "Let's shake on it" isn't just about the physical act; it's about finalizing a mutual understanding, turning words into a tangible, honorable commitment.