mewling 

Welsh valleys slang. To drive around in a car (usually a clapped-out Escort/Nova covered in cheap spoilers and Max Power stickers) with your mates, wearing baseball hats, listening to an incredibly loud stereo, in an attempt to impress and then impregnate the local 14 year olds.

'Jon's gone mewling in his Nova. I saw him doing doughnuts in the Iceland carpark. The local chavettes seemed very impressed.'

mewling by The Moai April 19, 2005

Mewling quim 

An insult used by Loki in the Avengers movie which roughly translates into modern English as 'Whining Cunt'.

Loki: You mewling quim. I will use your very emotions and femaleness to break you horrifically
Black Widow: *insulted*

Mewling quim by Queen Loki November 8, 2012

Mewling quim 

Victorian era slang which literally means a whimpering vagina. This can be used as an insult synonymous to whiny bitch, cry-baby, or wussy.

In the 2012 Avengers movie, Loki tells the Black Widow, "This is my bargain, you mewling quim"

Mewling quim by RenFestGeek October 13, 2012

Mewling quim 

An insult used by Loki of Asgard from movie "The Avengers".

Mewling: to cry/whine
Quim: British vulgar term for vagina
Mewling quim: Whiny vagina

Loki: Shut up, you mewling quim!

Mewling quim by Mrs. Loki Laufeyson August 19, 2012

Mewling Dog 

Dave Lane of the crane

I'll duel him and him and him and him and him oh no no more duels

Mewling Dog by Anonymous September 17, 2003

mewing

A technique attributed to a British orthodontist named Mike Mew that involves putting pressure on the roof of your mouth with your tongue to try and change the shape of your face by moving your maxilla up and forwards with the lateral pressure of your tongue. This fits into the broader looksmax approach to self-modification in the name of love and romance.

Stacy "Yh Chad has some nice ass jaw now. He's been mewing for 6 months now"

mewing by xaviergainford January 14, 2019

Merling 

Other word for merman. A man with a fish-type body from the waist downwards.
Plural: Merlings/mermen.
The word is used sometimes in the "a song of ice and fire" book series from G.R.R. Martin.

"Wow that guy swims like a boss!".
"Lol, prolly a merling."

Merling by ReiniFtw April 13, 2013