An antiquated and euphamistic term referring to the act of defecating in one's undergarments unintentionally, specifically when attempting to expel gas. The term would generally be used by an elderly woman.

See also; Hershey squirts, diarrhea,
Medical Doctor: "Have you been experiencing any diarrhea or other GI problems recently?”
Elderly Female Patient: “Well I do get the Panty Burps every now and then.”
by AppleJack68 February 12, 2010
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A more delicate sounding name for a queef. Queef sounds so disgusting... and pussy fart sounds even worse. Panty Burp is elegant.
Doggy style always gives me the panty burps.
by Topsii Krett April 6, 2017
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