the act of shitting on a person's chest and then during the shit the person shitting moves their anus up to the mouth of the person they are shitting on while shitting through out the process.
man, i gave jenny a Cleveland steam train last night and holy shit she was so wet after.
When you are standing in line for a ride at Shanghai Disneyland and it is so packed and crowded that someone accidentally sticks a finger right in your butthole.
Peter was excited to go the crowded party until he got a Shanghai Mine Train in the hallway and didn’t know who did it.