metre 

The length of the path travelled by light in a vacuum during the time interval of 1/299792458 seconds.

The caesium 133 atom can switch periods of radiation 30.663318988498369762190615215544 times in the time it takes light to travel 1 metre.

metre by lj90 September 28, 2007

metre 

A measure of length, the base unit for length in the metric scale. Although spelt "meter" in the United States, the proper spelling is "metre".

One metre equals one thousand centimetres
One metre is also equal to 3.28 feet

metre by Brett5 January 1, 2009

metre 

n. impractical French unit of length based roughly on the circumference of the earth. Supporters claim that metres (and other metric measures) are more practical than Imperial measures despite the invention of the 'metric foot' (0.3 metres) and the 'metric yard' (0.9 metres), which defy the point of metrication.

Give them 25.4 millimetres and they'll take 1.6093 kilometres!

metre by Hodgit August 6, 2004

Social Metre 

A metre for how long a person can be in a social situation for, once it's drained its time to leave

Person 1: I'm gonna go
Person 2: Why?
Person 1: My social metres drained, need to recharge

Social Metre by Zipped_thunder April 12, 2020

Maco metre

(Pronounced mah-co-me-tah)
A Trinbagonian word which describes an imaginary and innate instrument whereby someone (a "maco" or "farse" person) is able to detect an opportunity to eavesdrop.

Wheeyy!! Yuh maco metre sharp boy! How you hear dat?

Maco metre by Jenn Lee May 1, 2010

Metreklunk

German swear word meaning stupid person or action. Also an exclamation of anger, similar to the American “Fuck”

“You’re such a Metreklunk”

“Metreklunk!”

Metreklunk by MullerK May 12, 2019

SPESS MEHREEN 

An alternate spelling of space marine, often used to make fun of Indrick Boreale's accent in the video game Dawn of War: Soulstorm

Indrick Boreale: We fight for our honor as Blood Ravens, as SPESS MEHREENS... and we will fight in the name of the EMPRAH!

SPESS MEHREEN by Flash Dude November 26, 2010