In this, the 200th episode, Stewie goes backwards in time and, unless he can stop it, he'll be back in Lois' womb and "unborn".

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!!Tropes:

* OhTheHumanity
* RewindGag: The entire point of this episode. "WE ATE SO MUCH VOMIT!!", sex in reverse, the chicken fight goes backwards, Stewie having his diaper ''un''changed...
-->'''Stewie''': Oh God, that all just went back into me!
* StableTimeLoop: Stewie got his name because Brian went back in time.
* VomitIndiscretionShot: {{Inverted}}, PlayedStraight, and then {{Inverted}} again. "WE ATE SO MUCH VOMIT!!"
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