Retard Hands 

When you play one video game then try to switch to another game but your hands don't do what you want them to.

Dude, I keep throwing a grenade when i try to reload, what's up with that?
You have retard hands..

Retard Hands by Ferrisfreshie February 4, 2010

Retard Handshake 

Going in for a handshake and 'accidentally' slipping a thumb in the other person's asshole.

"I saw that hot chick from the 6th floor in the elevator today, you know, the one I called dibs on, I nearly gave her a retard handshake as she walked out."

Retard Handshake by slack455 July 31, 2012