North American brand of a painkiller whose active ingredient is acetaminophen (AKA paracetamol outside North America).
Don't take more than the recommended dose of this stuff (or of any other paracetamol/acetaminophen based painkillers). Overdose can cause liver failure, a fairly unpleasant way to die.
There are tales of people overdosing on tylenol/paracetamol pills one evening, and waking up the next morning feeling sheepish... they go about their business as normal, then later that afternoon start to feel really ill, get rushed to hospital and die shortly afterwards because their liver is knackered.
A pain drug that has recently been named as the “reason for autism”, this is now slowly becoming slang for autism, saying someone ‘eats Tylenol’ is calling them autistic
Friend 1: I have an encyclopedic knowledge of My Little Pony.
Friend 2: Sure, Tylenol muncher.
Friend 1: Stfu I am not diagnosed