Boston Steamroller 

When a man takes a shit on a woman's chest in between her tits, and then proceeds to titty fuck her.

After Samuel took the shit on his girlfriend's chest, he placed his member on the shit and between her breats, and let her have it.

Boston Steamroller by Karl March 12, 2004

Boston steamroller 

When you take a shit on your partners chest and ride it in

Bob - "She did the Boston steamroller"
Phil- "and what the hell is that?"
Bob- its when they take a shit on your chest and ride it flat"
Phil- "gross man freaking gross"

Boston steamroller by Eskimo_grl February 5, 2012

boston steamroller 

When a man receives a blowjob whilst taking a dump. The combined pleasure of pooping and getting head has been known to be fatal in some cases.

Right before he came in Amanda's eye, blinding her for weeks, Dack was getting a boston steamroller in the port-a-potty.

boston steamroller by Kenndawg January 11, 2005

boston steamroller 

a rare occurence when you're really drunk off doing jameson shots at a bar and hog a fat irish chick. as you're doing her anally, she starts falling backwards and crushes you as she starts to duce on your shaft. that's when know you've been boston steamrolled!

after doing 7 shots of jameson, I recalled taking home this chick. her name was jenny mcnasty. when I woke up, she was still on top of me, crushing my body, as she weight over 150lbs. my dick was still in her ass and when she got up, there was shit all over my waist. that was when I knew I had been subject to the boston steamroller.

boston steamroller by hung lo for life December 9, 2008

Boston Steam Roller

When a male shits on on a females chest while cumming in her mouth.

thats messy

Boston Steam Roller by kuc62 October 6, 2003