Top definition
When a male proceeds to ejaculate on a women's anus and the cum rolls down towards the genitalia. The cum resembles a Russian hamster racing.
"BRO GUESS WHAT!?"

"What?"

"Last night my Russian Hamster raced to her Vag in 6 seconds!!!!"

"No way, NICE!"
by GiggleGoat December 17, 2009
Get the mug
Get a Russian Hamster Race mug for your friend Jovana.