M1CRO 

British Amateur Radio (Radio Ham) Callsign of the Colchester (vhf) Contest Group.

The UK has 3 main Callsign series:
G
M
2
Each can take a regional identifier. ie: GM for Scotland, GW for Wales.
M1CRO is the UHF/SHF Callsign of the Colchester Contest Group.

M1CRO by M1CRO December 25, 2008

Macronym 

1:
The longform of an acronym.
i.e. the macronym of ADD is Attention Deficit Disorder.

2:
Used to describe what the roots of compound words are.
i.e. the macronym of won't is will not.

Antonym: Acronym

Someone uses an acronym you are not familiar with;
"What is the macronym?" Or,
"What is the macronym of _____?"

Macronym by The Spam October 4, 2022

macroverbumsciolist 

1) a person who is ignorant of large words
2) a person who pretends to know a word, then secretly refers to a dictionary

Tom: Harry, you are such a macroverbumsciolist.
Harry: No I'm not! You're a macroverdumbscientist.
Harry later looks up macroverbumsciolist on urbandictionary.com and hates Tom for the next five minutes. He then pays up on his bet.

macroverbumsciolist by ~Tom April 14, 2008

Rashad McCrorey 

Rashad McCrorey is a term used by African Americans meaning traveling to Africa and leaving America.

Rashad McCrorey the person is known for choosing to self quarantine in Ghana and not America during the COVID-19 pandemic.

I'm tired of all these black men being unjustly killed. I'm about to go Rashad McCrorey and never come back!

Rashad McCrorey by UnityisWealth May 16, 2020

McRoll'd 

McRoll'd is a parody of rickroll'd. You're linked to this video instead of a video you were hoping to see.

Contains a crazy remixed version of a Japan McDonald's ad with catchy music in the background from the "Touhou Project" games (composed by ZUN from Team Shanghai Alice).

Person A: Someone just got 100% on Through the Fire and Flames, there's a vid on youtube right now.
Person B: Awesome! Send me the link!
Person B: ...wtf.
Person A: MCROLL'D!

McRoll'd by Fechmar January 11, 2009

macrofructation 

The hurried fruiting of a fungus, most often when raw sewage or excrement triggers the growth of morels.

Look at all that macrofructation of tasty morels sprung from those surface shitters!

macrofructation by Biomedbrain July 22, 2021

Macrohard 

A large penile erection - the opposite of Microsoft, which means to have a flaccid penis.

Guy 1: "I've got a macrohard after watching that movie."
Guy 2: "I've got a microsoft now after being outside in -30 C in shorts."

Macrohard by TheLoneCrusader May 17, 2014