Windsor Tunnel 

Sexual act named after the tunnel which connects Windsor, Ontario, Canada to Detroit Michigan. In it a man has anal intercourse (or HRA, hot rear action) with a 19 year old girl in the alley behind _____ (insert name of Windsor bar here).

It should be noted that 19 is the legal drinking age in Canada.

“Hey bro, where you been?"

"I just fucked that drunk american girl in the ass in the back alley!"

"Ah, you just took a detour through the Windsor Tunnel my man!"

Windsor Tunnel by Misuk Shawncok June 18, 2008

Windsor Wind Tunnel 

When a man farts into a girl's butt causing the "wind" to travel through her insides and out her mouth in the form of a disgustingly stinky burp. Her mouth then smells like a fat, hairy guy's ass for 2-6 hours depending upon her penchant for hygiene.

This is often done in Windsor (Canadian city right outside of Detroit, MI) as everything in Canada is ass backwards and dirty...

I don't know whether this girl I met ate a pig's ass for breakfast or she ran to the bathroom and got a WINDSOR WIND TUNNEL from some dude...Her breath is nasty!

Windsor Wind Tunnel by Bentiss December 31, 2008