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To perform a sexual act on another individual on public or group transport (such as a bus, train or plane). Sometimes but not always by a girl named Melissa.
"I fully saw this girl give this guy a Melsy on the train the other day"

or

"We were all so drunk on the way back from the wedding that Mel gave James a full 'Melsy' in front of everyone"
Melsy by DJ Japeye January 28, 2019
Related Words

Waving a chipolata in the Mersey Tunnel 

The sexual act, when performed with a woman of generous genital proportions. Or a man of diminutive proportions. Or both.
She was so loose I thought I'd have to strap a board across my arse to stop myself falling in. It was like waving a chipolata in the Mersey Tunnel.
Sexual orientation: Melissa McBride. A phenomenon experienced by many fans of the television show The Walking Dead.
I used to be bi-/hetero-/homo- sexual, but now I'm just Melsexual.
melsexual by melsexual October 10, 2014

mersey trout 

a turd: descriptive of the only fish-shaped items found in the river Mersey (running through the city of Liverpool in England)
Richard sat on the khazi and launched a Mersey Trout
mersey trout by Jules the King January 9, 2004

Merseyside

A good and peaceful place in North West England, bringing together the cities of Liverpool, Wirral, among others. Bathed by the River Mersey and a historical pillar for England's seafaring (Liverpool docks). Packed full with good nightclubs, stunningly good looking women and some of the most friendly and welcoming people in all Europe (although our accent tends to confuse people sometimes). Contrary to popular belief, the Merseyside is not a big slum in the middle of nowhere - neighbors Lancashire and Greater Manchester also display high levels of criminality. And thank god we were broke apart from these cunts anyway.
Bloke 1: 'Merseyside, big history, beautiful county, nice place to live.'
Bloke 2: 'Sound.'
Any issue regarding the eye.
Example 1: I am scared to drive somewhere and get my eyes dilated since I will not be able to drive back because i will have messeye.

Example 2: Ewww... have you see Karina's left eye? Yeah, she has major messeye.
messeye by Lschlong & Aldong December 21, 2008
More from Urban Dictionary
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026

Respectfully 

Precedes or follows either a gratuitously disrespectful or honest remark, originated in New York City. Used in similar fashion to "no offense" or "to be honest," interchangeably.
Ya mans is wild buns, respectfully. Respectfully he's washed.

After school, The Modells on Jamaica Ave was active. Respectfully.
Respectfully by john quan the first December 20, 2020
Word of the Day on September 26, 2026

You met me at a very Chinese time in my life

A moment in time where you feel distinctly Chinese over all other things.
Dante: "I wish I could be Nigerian, but I can't because I'm Chinese. You met me at a very Chinese time in my life."
Word of the Day on September 25, 2026
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