Periodic Table 

An ingenious table of chemical elements ranging into the 100's. From Hydrogen to Uranium and element 114. A perfect atom and nucleus with such stabillity only found on the island of stabillity.

The periodic table is a basic lesson for any pupil wanting to learn the great subject of science

Periodic Table by CaptainWhiteyBoy December 15, 2006

period fart 

n. An infamous variation of both the shart and the silent-but-deadly. Only occurring in menstruating women, this fart requires no extra push to get it out- it just glides under and through the inner labia and, if present, onto the pad, taking some period blood with it. Some say that this is actually a period queef, but either way, it stinks. The odor can vary. Sometimes it smells of rotten period, dead fish, sulfur, or even a combination of the three. It varies from vagina to vagina.

v. To expel a period fart (see above).

A couple is having a romantic dinner.

Man: "Are you on your period?"

Woman *period fart* "No, of course not!"

Man: "OH HOLY SHIT YES YOU ARE!" *passes out*

period fart by Swushi November 3, 2009

periodnate 

the act of having ones period

Jackie periodnated all over her new white pants.

God why is Ashley being a bigger bitch than normal today?
idk mang, shes probably just periodnating

Jamie asked if she could borrow my new jeans, and i let her - as long as she didnt periodnate in them.

periodnate by Lindsay Ann Jessica April 25, 2007

Period 

1. A punctuation mark at the end of an informative sentence.

2. Something every girl goes through at some point in their lifetime and dreads. It is a good sign, for it shows you arenot pregnant. It also guarantees no sex during that given time. It can be called many things, including the red river, the death, and the visit from aunt flo.

1. And that is why you use a period students. - teacher

2. Hey bro- Guy 1
Hey dude, can’t talk, my girl is bleeding out like the devil.- Guy 2
I thought that was going to hell.- Guy 1
No, that’s kinda what a period is like though.- Guy 2

Period by BLACKONBLACKNCT2018 January 1, 2018

Peridot 

Peridot is the upgraded version of “period”

Lily: *having a long speech/has to say something important*
That random stupid annoying girl/guy/they/them/whatever: PeRiDoT

Peridot by Zacrton November 2, 2019

Period poo 

Something a 12 or 13 yr old would say after they end a conversation

Just stop making a big deal about it, end of conversation, period poo!

Period poo by hamburger2020 May 2, 2021

Chicken period 

An egg. Wholesome, delicious eggs ... As in omelettes, eggs and bacon, hard-boiled eggs, etc.

My friend became vegan after coming to the realization that egg are essentially chicken periods.

Chicken period by Jungleusa April 21, 2010