Partl 

A semi straight guy with a sewing kit by his side.

Can you Partl my socks?

Partl by arooster8 July 3, 2009

Parallelogram 

In Euclidean geometry, a parallelogram is a simple (non self-intersecting) quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure. The congruence of opposite sides and opposite angles is a direct consequence of the Euclidean Parallel Postulate and neither condition can be proven without appealing to the Euclidean Parallel Postulate or one of its equivalent formulations. The three-dimensional counterpart of a parallelogram is a parallelepiped.

The etymology (in Greek παραλληλ-όγραμμον, a shape "of parallel lines") reflects the definition.

A simple (non self-intersecting) quadrilateral is a parallelogram if and only if any one of the following statements is true:12

Two pairs of opposite sides are equal in length.

Two pairs of opposite angles are equal in measure.

The diagonals bisect each other.

One pair of opposite sides are parallel and equal in length.

Adjacent angles are supplementary.

Each diagonal divides the quadrilateral into two congruent triangles.

The sum of the squares of the sides equals the sum of the squares of the diagonals. (This is the parallelogram law.)

It has rotational symmetry of order 2.

What are you studying Jane?
Oh, I am studying quadrilaterals, specifically I am on Chapter 5 proving a quadrilateral is a Parallelogram, Claire.

Parallelogram by david faustino December 18, 2012

parallel partying 

When Drinkers and Stoners party together.

I don't need a drink, I just smoked a joint, I'm parallel partying with you guys.

parallel partying by 6deluca6 August 30, 2016

Parallel killer 

Someone who kills many people at once

Dave realized that being a parallel killer was much more efficient than being a serial killer.

Parallel killer by Low Bo February 14, 2015

parklife 

Parklife is the act of not having a job or any means of gaining money except that of the dole.

I get up when I want except on Wednesdays when I get rudely awakened by the dustmen PARKLIFE

parklife by GLITTERLOVE May 1, 2006

Celebration Parallax 

The phenomenon whereby the exact same set of facts is either celebrated or deplored depending solely on the political bias of the observer.

When a liberal writes that increased immigration is good because it leads to a liberal demographic shift, but then writes that conservatives decrying increased immigration are pushing "replacement theory," that's celebration parallax.

Celebration Parallax by sensei10 January 31, 2023

feline paralysis 

The inability to move or accomplish anything useful because the cat is lying in you lab purring/sleeping.

Him: Hon, could you grab me a beer from the fridge?
Her: Get it yourself!
Him: I can't. I've got feline paralysis.

feline paralysis by metasymantic February 6, 2009