A Random Black Kid in the Harry Potter and the Prisoner of Azkaban Movies who randomly turns up and randomly says something Dark
kid1: Lovely day, Isn't it?

Random kid: It's like trying to catch smoke. It's like trying to catch smoke with your BARE HANDS

kid2: Where did that Bem come from?
by Truday11 May 31, 2010
The most underrated character in the whole Harry Potter series #bemsupremacy #bemisourking
woah that guy has a big ass bulge in his pants😳.. must be Bem😏”
by bemsuprem November 26, 2020
1) Bug Eyed Monster. A stereotypical being from another planet, usually depicted with buglike eyes.
2) The truncated name of a Japanese anime TV series, "Yokai Ningen Bem", and the name of a character from that series, in Japanese: Bemu. The series featured alien crimefighters, at first distrustful of humans but later learning to deal with human platitudes.
1)Help! There's a BEM trying to attack me!!!!
2)I'd like to know where I could get a translated video of BEM.
by pentozali April 3, 2009
an old sci-fi abbreviation for 'bug-eyed monster'. Dates back to the time of movies of the week that were so stereotypical, people made abbreviations for each kind of character.
Also an episode of Star Trek: The Animated Series, and the preffered name of bemdude
God, that BEM is fuggn' weird.
by bemdude April 11, 2005
You must be a bem.
by Dyke July 29, 2003
To insert one's erect member into the twitching anus of another
Karl is a huge fan of bemming, though no blokes will let him partake
by G February 4, 2005
Booger Eating Moron. Someone of low intelligence.
What a bunch of BEMs, they probably can't tie their own shoes.
by Gravelpitt November 15, 2006