During a threesome (one guy, two girls) after the deposit has been made into one girl, the other girl immediately sucks it out.
Alternative Definition: Two guys bring home two girls from the bar (one hot, the other a granade or 'Grimbo'). They are all having sex in the same room and the guy with the hot girl is experiencing the 'Reverse Commute' since he is in a far better postion than his mate on the other side of the 'highway'
The act of making a bowel movement directly after a hot shower.
Thanks to the tacos, I had no choice but to perform and emergency reverse commute