(n.) A situation where an idea or thing has very little probability of existing or continuing to exist. In the same vein as "a snowball's chance in Hell," except less dependent on Christian ideologies.
Based on the idea that a mass of flatus has very little chance of being smelt if it is whisked away by the high-velocity air currents native to the windtunnels used in aeronautics testing.
Your new newsblog doesn't have a fart's chance in a windtunnel unless you plagiarize the shit out of other more prominent newsblogs.
When a fellow family member sits on your arse while you lay face down and let's one rip straight up your stinkhole then holding on as the victim tries to buck you off in absolute disgust.
Becky was sitting on Robbies backside and pulled a sneaky Rochow Wind TunnelRodeo on him...surprise!
As you are in the heat of sex, the man or woman sticks their head down into their partners anus. Upon reaching the anus, the one who is not face full of ass will then let out a fart into the others mouth. After the fart has been pushed out, the person will hold the fart in their mouth as they slowly go to kiss the opposite sex. She or he will then release the fart and blow it all over the face of their partner. This completes the wind tunnel.
Ms. Jansen really wanted to get freaky so I decided to give her a wind tunnel. She LOVED it.
Sexual act whereby an individual applies mouth to anus of willing partner who then passes flatus, while said individual inhales deeply, holding his/her breath. Individual then exhales entirely into mouth of partner while he/she inhales deeply.
After running out of NOS, Bill and Larry decided to up the ante and began two fisting empanadas and chorizos in preparation for a mind blowing Texas Wind Tunnel session.