Short for megalomaniac, someone with a huge ego and extremely arrogant, frequently out of touch with reality. James Bond's enemies are an excellent example.
That guy is really a meg because he thinks he's such a big shot but he's the only one who believes it.
by Cumbre Vieja October 1, 2023

by the other taco May 27, 2022

by Ninina September 21, 2019

When you get in the wrong rental car, drive it away, and keep it for a week, resulting in the rental company reporting the car stolen.
by Tweedle Dee September 17, 2012

by EmJayee February 3, 2020

by 8 rugby October 7, 2020

A girl who is larger than average and is not attractive to males so finds solace in the more sympathetic lesbian community by overtly pretending to be gay.
by MrPookay July 22, 2019
