A ritual performed by chemistry teachers where they strip naked and get into a butt to butt position and fart repeatedly exchanging gas.
Student: "Did you hear Miss Byrne and Mr Percival gas exchanged in front of the whole class."

Other Student: "God I bet you creamed yourself"

Student: "Ohh trust me I'm soaked"
by Jaquantavius February 24, 2021
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when to people put there assholes together then one farts. the fart then proceeds to enter the other persons asshole. from there the person farts out the original fart. (makes a sound "pooof fffooop pooof")
baby im going to sascuribe to the natural gas exchange with you.
by the 2355 September 5, 2010
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A ritual performed by chemistry teachers where they strip naked and get into a butt to butt position and fart repeatedly exchanging gas.
Student: "Did you hear Miss Byrne and Mr Oles gas exchanged in front of the whole class."

Other Student: "God I bet you creamed yourself"

Student: "Ohh trust me I'm soaked"
by Jaquantavius February 24, 2021
Get the Gas exchange mug.