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1-(3-Chlorophenyl)piperazine or meta-chlorophenylpiperazine.

A compound sometimes marketed as an ecstasy substitute. Due to being legal in most countries and very easy to obtain, mCPP has found its way into many 'ecstasy' tablets being sold on the black market, particularly in the UK.

The chemical is used in the medical world for testing headache medication, as it is known to induce migraines in 90% of individuals who commonly suffer from them. As such, it is very rarely taken on purpose for recreational use and is only normally taken in error where the user is expecting MDMA (ecstasy).

Effects seem to vary dramatically from one individual to the next, but generally include headaches, gastrointestinal discomfort, tachycardia, dizziness, vomiting, hallucinations and insomnia. Some users claim mCPP produces a similar high to MDMA (ecstasy) - but most consider this high to be overpowered by the negative effects of the drug, making it not worthwhile. Effects normally come on within 30 minutes, beginning with stomach cramps and general discomfort. Many users report the 'comedown' to include a searing headache felt in the front of the face and difficulty sleeping even many hours after ingestion of the substance.

Due to its vast array of effects, mCPP is often mistaken for other substances by those who are inexperienced or unaware of its existence. The rushing and jaw clenching often experienced leads some users to believe the pill they have ingested contains speed (amphetamine), while the 'trippy' hallucinogenic side-effects lead others to believe the pill has been adulterated with ketamine or a phenethylamine such as DOB or 2C-B. Genuine adulteration with these psychedelic substances is actually very uncommon, and would produce very different effects in any case.

mCPP cannot be identified by any current pill testing kit, but experienced users can often identify it by means of taste - although it has a similar bitter taste to that of MDMA, it is somewhat tangy and citrus-like.

In recent months, mCPP pills have flooded the ecstasy market in the UK leaving traditional MDxx-based pills increasingly hard to come by and often more expensive.
Rockets, Bombs, Creams, and many more...

Be wary - mCPP is NOT ecstasy!
mCPP by Strach March 3, 2008
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flophouse 

Any house/apartment/frat house/trailer/etc. which is used for individuals to crash (sleep, chill, hang out, lurk, etc.) for a period of time. In order to "crash", one must not actually live there (e.g. have their name on the lease, own said flophouse, etc.). Flophouses are typically used by college students, drug addicts, transients, vagrants, or other unsavory characters.

A flophouse may also be the home owned by the parents of a college student, who after being away at college, wishes to live as if he/she is still at college (e.g. staying out all night, returning just to crash at mom and dad's house, then leaving again), rather than conforming to the pre-college rules.
Example #1
Dude: (Talking to someone passed out face first on the floor of his college apartment) Hey man, who the hell are you? What do you think this is, a flophouse??

Bro: Sorry dude, I must have passed out for a minute.

Example #2
Mom: Where have you BEEN for the last three days? You come home just to sleep?? What do you think this is, a flophouse??!!

Son: What's your problem? I'm an adult now!
flophouse by J3553 November 21, 2007
Word of the Day on July 27, 2026
Related Words

Hate Sink 

A person you hate intensely not because they deserve such hatred but because they serve as a focus for your general hatred. A healthy way to dispense with excess animosity.
Jake's not really that big an asshole. He just serves as my hate sink.
Word of the Day on July 26, 2026

funiosity 

The art of being peculiar, but in an amusing fashion.
"Wow, look at that dog running on three legs"
- "Yeah, that sure is a funiosity"
funiosity by Supersonic Stevie November 23, 2007
Word of the Day on July 25, 2026
A toe rag was originally a foot wrapping used, since mediaeval times up until the mid-nineteenth century, to protect the foot from chafing by boots or shoes. As these were, quite literally, rags they weren’t usually washed, and so with use they became very smelly until they were thrown away. Because of the similarity in smell, toe rag also became the name applied to dried, salted cod or other things with a strong, unpleasant, fishy smell. It didn’t take that long before the name was applied to someone who was an obnoxious, unpleasant OIC.
1 “Socks! Those aren’t socks you smelly git, they’re toe rags!”
2 “What have you been cooking? Smells like toe rag!”
3 “I can smell ‘er fanny from ‘ere, proper toe rag.”
4 That Heale Malcolm is a right toe rag.
Toe Rag by AKACroatalin November 29, 2016
Word of the Day on July 24, 2026

Eternity leave 

When some resigns or retires from a job, they are on "eternity leave". This can also refer to someone who has passed away, especially someone who worked somewhere for a long time, retired/resigned, then passed away later.
Oh I'm sorry, you didn't know that Kelly is on eternity leave? She resigned and moved to Hawaii!

With regrets I would like to inform you that my boss is officially on eternity leave. I will never see or hear them again. Ever.
Eternity leave by LingDanc803 February 7, 2023
Word of the Day on July 23, 2026
The hypothetical man (often a sinister character who decided not to go to boot camp) that is doing your girlfriend/wife while you are on deployment overseas.
Ain't no use in goin home,
Jody's got your girl and gone.
Ain't no use in goin back,
Jody's got your Cadillac,
Ain't no use in feeling blue,
Jody's took your checkbook too.
jody by Sgt Apan March 31, 2006
Word of the Day on July 22, 2026