A term used to describe a failure state of lithium-ion batteries, such as those found in smartphones and laptops. A battery can become a spicy pillow due to multiple factors, including (but not limited to) the battery's age, physical damage to the battery, and/or an error in manufacturing or installing the battery. In this state of failure, the battery has entered "thermal runaway": unwanted chemical reactions inside the battery cause heat and poisonous gases to build up inside it.

The "pillow": the build-up of gases inside the battery causes it to swell, resembling a pillow. This often happens slowly over time. The swelling is an obvious sign that the battery has failed, or is about to fail. The pressure build-up may in turn make the battery's device bulge and then come apart, e.g. a phone's screen cracking and/or separating from the phone body.

The "spicy": the swollen battery is now a fire and/or explosion hazard. Improperly-contained spicy pillows have destroyed vast swathes of electronic equipment, set houses ablaze, and sent people to the emergency room with third-degree burns, often due to the phones in their pockets.

"I don't care how fun it looked on YouTube, Dan — don't pop that spicy pillow!"

spicy pillow by cosmogyral-delirium August 9, 2020

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Spicy poop

Fecal matter that contains trace spices, peppers, chilis, or oils from the person's last meal, causing the pooper anal discomfort or burning, ranging from mild to severe. This discomfort occurs while pooping and possibly up to 24 hours thereafter, dependent on level of spiciness of the consumed food.

Dude, after eating "El Burrito Diablo" from that mexican place, I have had spicy poop 3 times this morning alone. This is worse than when i ate the Atomic Wings!

Spicy poop by milkacow October 8, 2010

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