Gas Logs

When you have a large dump with a lot of gas.
If I eat too much Mexican food, I'll have gas logs for days.
by aguyinnc12 July 04, 2011
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gas log

The moment right before a shit when air is expelled from the anus, preparing it for the upcoming shit.
Man, I just passed a gas log and the shit express is on it's way!
by deysr July 10, 2012
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