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A fart the proceeds a larger fart. the reason for this is for safety of the individual farting, to ensure that there is not something more behind it. If the individual is not sure about if he or she has to crap or not, the sentinel fart is utilized to determine this. If the fart is disbanded in safety, it is ok to proceed with the larger, more robust flattace.
P1: Why does Brad keep crapping his pants like a 2nd grader? He is a grown man.

P2: He should probably be taught the magic of sentinel flattace.
by jaydizzle21 August 20, 2012
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Sep 14 Word of the Day
Micro marriging is when your partner manages your personal day-to-day tasks with you much like a Micro Manager at work.
Wife: “Have you put the sheets out to dry and put the towels on?”
Husband: “Yes. You know I am a grown adult also used to live alone so you do not need to micro marrige me”
by Thomas Maddocks March 16, 2018
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