While receiving a blowjob you pull out before you cum and smack the forehead of the person giving you head.
Loren: I was getting a blowjob and I pulled out and gave her a Russian Hammer right before I came!
by Jefflane April 25, 2017
Get the Russian hammer mug.
When a male is about to ejaculate and he starts hitting the woman on the head with his penis until he comes.
"dude i heard kari did a russian hammer time with kari!"

" yeah man i heard they went at it hard"
by EFANG June 17, 2009
Get the Russian hammer time mug.
1 Russian Jack Hammer:
Hit a big bowl of weed
While holding hit in:
place a caffeine pill on your tongue
wash down with a shot of vodka
chug a beer (usually pabst)
Exhale
Do 5 in a night and its called a 'revolution'
by steve jacobs2 July 28, 2011
Get the Russian Jack Hammer mug.