A group of people walking shoulder-to-shoulder on the sidewalk who refuse break formation to allow oncoming pedestrians to pass.
I was on my way to work when I encountered a group of teenagers who were walking the opposite direction. I had to step into the gutter to avoid colliding with that sidewalk snowplow.
The act of taking the leftover mashed potatoes, from Easter dinner, and inserting them into your partners vagina while she is on her period, then fucking the mashed potatoes out, resembling a rusty snowplow on a beat up '76 Chevy truck....
After my uncle tried to fight my sister at my moms Easter dinner party, John gave me Rusty Snowplow.
after railing the female (or male if thats your thing) from behind for an unspecified amount of time and shooting your wad all over their back, punch them in the back of the head. hard. used to prevent unwanted after-sex cuddle time. similar to the the Dirty Pedro
Jeez, I took your advice and used the Cleveland Snowplow on Jane last night and I went right to sleep when I put my head down.