sodium pentathol 

Chemical formula: C11 H17 O2 N2 S Na

Sodium Pentathol (less commonly known as sodium thiopental) is one of the three chemicals used in lethal injection, is used as a truth serum in several states due to the effect it has on your mind, and is the quickest and easiest way to medically induce a coma.

Sodium Pentathol was discovered in the early 1930s by Ernest H. Volwiler and Donalee L. Tabern, working for Abbott Laboratories. The term "sodium pentathol" is coined by Abbot Laboratories.

It is also a song by the thrash metal band Anthrax

In the lethal injection of Oklahoma bomber, Timothy McVeigh, Sodium Pentathol was injected into his system along with two other chemicals

sodium pentathol by Steven Grant June 18, 2007

Pentatonix 

An a capella group that officially began their singing career after winning Season 3 of "The Sing-Off," the group consists of Scott Hoying (baritone), Kirstie Maldonado (soprano/alto), Mitch Grassi (tenor), Avi Kaplan (bass), and Kevin Olusola (beatboxing percussionist). Pentatonix derives their name from the number of members in the group and from the pentatonic scale in music theory, with the c changed to an x for stylistic purposes. The group first began with the original trio of Scott, Kirstie, and Mitch from Arlington, Texas who decided that in order to effectively compete in "The Sing-Off," they needed a bass and beatboxer. Kevin (beatbox) was found by Scott on Youtube after watching Kevin's video of him beatboxing while playing the cello. Avi (bass) was contacted by the trio and joined up after seeing the three in a Youtube video. After winning on Season 3, the group signed a record label and was soon touring the United States. Their specialty is doing covers of popular music while adding in their own special breakdowns and futuristic musical effects, thanks to Kevin and Avi, with Scott, Kirstie, and Mitch focusing on melody and harmony. Some of their most popular covers are "Video Killed the Radio Star" by the Buggles, "Dog Days Are Over" by Florence and the Machine, and "Aha!" by Imogen Heap.

"Oh, dude! What band are you listening to? They sound so cool!"
"Man, I'm listening to Pentatonix! It's so hype!"

Pentatonix by PTXLover December 19, 2012

Pentaholic

Someone who will support Pentatonix (PTX) in anything they do. They will stick with the band through thick and thin. They are die-hard fans.

PTX Fan- Pentatonix is soooo awesome! Did you know that they are an instrument free band?
Pentaholic- I know that Pentatonix won the Sing-Off season 3. There are five members, 4 guys and 1 girl. Kirstin (Kirstie) Maldonado, Scott Hoying, Mitchell (Mitch Grassi, Kevin (KO) Olusola, and Avriel (Avi) Kaplan. And a million other things that you wouldn't understand yet.
PTX Fan- .... What do they even call their fans? PTX Fans?
Pentaholic- -__- .... You know nothing.

Pentaholic by #TeamMeat February 22, 2014

Pentaholic

A person who is COMPLETELY OBSESSED with Pentatonix; a term for Pentatonix fanpeople. Can be identified by a person who always wants to listen to Pentatonix, who dislikes the original of PTX's songs that they covered, can spell Maldonado without missing a beat, know the current color of Mitch Grassi's hair, and a person who can be relied on to say something related to Pentatonix in almost every sentence. Aviously.

Pentaholic: Have you seen K.O.'s new chelloboxing vid yet?
Person: Who is K.O.?
Pentaholic: K.O. Nickname for Kevin Olusula, the beatboxer of the amazing two-time Grammy winning Season 3 winners of the Sing-Off. K.O. is a chelloboxing Yale graduate who Aviously is fluent in Chinese...
Friend: Here they go again...

People: Look at those Pentaholics talking about Penta-Con! Pentatonix is so cool!
Pentaholics: *Whispering to each other* They speak our people.

*Turn heads to People* Did you say Pentatonix?

Pentaholic by PTXLover15 June 14, 2016

Pentaholic

someone OBSESSED with Pentatonix

man, i watched some much pentatonix i think i became a pentaholic.

Pentaholic by tohkeyo February 22, 2015

Pentatonix 

Pentatonix is an a capella band with five humans (probably marshmellows or beans) that can REALLY sing. Once you stop listening to their music, you can't stop.

"Am I in heaven?"

"No you just forgot to take off your headphones and you're listening to Pentatonix."

Pentatonix by CerealKiller :3 January 18, 2018

Pentatonic Wanking 

Overuse of the pentatonic scale in music . The definition of SHITTY GUITAR SOLOS

One by metallica is a good song, but the solo is just pentatonic wanking and fucking tapping

Pentatonic Wanking by Knibnobber February 10, 2015