Russian Concussion 

A Russian concussion is when you splooge into someones ear while their sleeping, and tape it up. Then when they wake their equilibrium is all off quilter like they had a concussion

For added fun, you can combine the moment by shaking it all up so the person is that much more confused.

Also filling both sides earns extra point for the "double Russian concussion"

"We all laughed hysterically as the soccer team gave Sheldon a Russian concussion after he passed out in the library"

Russian Concussion by Seven87 January 16, 2006

Russian Concussion 

the effects felt the next morning after a long night of drinking vodka.

After the party last night, I woke up feeling nauseaous and had a Russian Concussion.

Russian Concussion by hockeystar11 January 12, 2010

Russian Concussion 

The Russian Concussion is when you are balls deep in a girl and smack her on the ear so hard that it starts to ring. Then, while she's holding her ear in pain, you cum inside her.

I was having sex with my girlfriend the other week and she told me to slap her, so I gave her a Russian Concussion.

Russian Concussion by Tommbo66 January 2, 2021

Russian Concussion 

A Russian Concussion is when one nuts into female's ears (preferably after intercourse), and then knock them unconscious.

Yeah dude we are doing some freaky shit, I gave her the ol' Russian Concussion last night.

Russian Concussion by DylanKelleher69420 March 9, 2021