singapore subway 

this act is perfomred by taking a pvc pipe and inserting it into a woamns rectum. after the piping is sufficiently buried in her asshole, slide as many micromachine cars down the tube.

i gave this ho a singapore subway last night. she is not going to shit right for a month

singapore subway by matt sommers April 5, 2005

Singapore Subway 

The act of sliding micro machines down a paper towel tube into another person anus

Tim: Hey i am bored do you want to try a Singapore subway

Jill: We are all out of micro machines, if you wait an hour i might be able to pass the ones from last time

Singapore Subway by Kevin Getzewich September 5, 2007

Singapore Subway 

When you stick a pvc pipe down a girls ass and run micro-machines down it

I saw a deek in my front yard so i took a Singapore Subway to his ass.

Singapore Subway by [e]SniperWolf May 25, 2003