Top Definition
When some one shaves the inside of their ass crack, lets it get all pricky, puts a part of the victim in between it, then rubs said butt cheeks together as if grinding meat.
"I gave your mother a Russian Meatgrinder last night bro"
by nomnomnom69 January 10, 2009
Same as the Russian dentist but the girl has braces..

When receiving a blowjob, you cum in the girls mouth. She doesn't spit or swallow, but she proceeds to use your dick to brush her teeth with your newly deposited cum. But she has braces.
You: Dude my girl was gonna do the Russian dentist but she just got braces on. Ouch!

Friend: Yeah thats what we call the Russian Meat Grinder
by Dr. El Todd October 22, 2009
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