I Love You Handshake
A hand shake that looks like your fingers are trying to fight each other. You do it like you're in love, and it's usually followed by a stupid grin that makes you look like an idiot.
My brother and his girlfriend did it at the party. Everyone was laughing at them.
My friend and his crush did it in the cafeteria. It was like the most awkward moment ever.
My parents did it at my birthday. It was like they were trying to make the whole party longer.