Pipetrain 

A series of at least 3 men connected, ass to penis.

"Nick is having a party tonight but I fear it's just an excuse to start a pipetrain."

Pipetrain by Ducky Howard December 3, 2009

Piperine 

Piperine is the chemical found in black pepper that gives it it's spice. Piperine is the scientific name for pepper.

Steve: Kevin, can you pass the piperine?

Kevin: Sure!

Steve: Fernando, can you pass the sodium chloride?

Fernando: Here you go!

Piperine by HawaiianPunch1 June 17, 2021

mouth pipetting 

Performing oral sex, especially on a scientist or laboratory worker

The attractive female lab tech asked about the dangers of mouth pipetting and if she was at risk to accidentally inhale the DNA sample she wanted to collect

mouth pipetting by DrHyde November 5, 2010

Piperazine 

Piperazine is a drug that belongs to the family of medicines called anthelmintics. These medicines are used in the treatment of worm infections (roundworms, pinworms). In the past few years, illegal drug manufactures have used piperazine in the production of ecstasy tablets as a cheap substitution. These manufacturers are mostly concentrated in Canada, where the drug is legal and over-the-counter. Piperazine is an ideal choice for making fake ecstasy because of the similarity in taste, and at certain doses, a user may experience favorable side effects and feel “high.”

"I got ripped off and bought some bunk piperazine pills."

"That ain't e. Homie, you got piped."

"Green ninja turles, yellow bart simpsons..."

Piperazine by alf321 March 25, 2009

penetrain 

like human centipede but with dicks

Tommy was a doing a penetrain in the traffic.

penetrain by gruncle jamal June 10, 2018

piperazine 

A cheap drug that is put in E to make up for MDMA and speed. Piperazine is an over-the-counter drug that is meant to help bloating, it resembles the taste of MDA (similar to MDMA) and this is why it's put in as a cheap alternative.

they put piperazine in my E!

piperazine by filter23232323 January 22, 2009

Piperranieri

A fallen Angel, a true princess of the land. She graces us with her beauty, her long flowing dark hair. To be in her presence is a gift from above. Cherish her for all that she is, will be the best of all worlds.

Shes a real Piperranieri

Piperranieri by hunnybearprincess January 1, 2012