When you get an old guy (preferably my g-pa) throw him on the ground and have him take a dump upwards like a train moving at high speed, and as the shit is coming upwards grab a condom and shove it over that then ram it in your ass like a monorail train thing.
SIDE NOTE: Lube might be helpful.
So last Christmas instead of giving grandpa the train set he's always been dreaming for, we performed a nice long monorail instead!
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When you pin someone down, then run your Arse Crack along their nose.
This is works bet when you have just had a big arse S*it.
monorailing
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When a guy lays his hard penis on his belly and his girl slides her dripping wet pussy on top and glides along it like the Monorail at Disneyland.
OMG...Kelly Monorailed me last night it felt like I was on a ride to the happiest place on earth
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1 : Partaking in intercourse aggressively enough that the other participant believes there are multiple partners.
2 : A one man train.
He was so aggressive last night, I thought there were eight of them, it was hard to believe it was just a monorail.
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to pick a thin girl up and never let her touch the ground until you are finished. Also you can run train and never let her down just like a Monorail
"damn that girl is so monorailable"
"you want to run train on michelle, no let's monorail that hot piece of ass"
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To poop in another's butt and then have that person poop it back into your butt, poopetually.
Cindy and I took a ride on the Midnight Monorail last night, and I ain't talkin' about at Disneyland.
A public works project that is a huge waste of taxpayer money that turns out to be either a scam, a huge waste of money or both.
Comes from the Simpsons episode "Marge vs the Monorail" where Springfield spent all their money on a monorail only to have it fall apart on its maiden voyage.
The sky lift system cleveland put in fell apart after a week. That thing was a real Springfield Monorail.