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A dude who conveniently forgets his wallet.
Dude, you’re totally pulling a Simko here.
Simko by Speedo July 19, 2022
Related Words
A boy who over reacts to everything commonly thought to have a vagina and is always on his period. Someone who makes a big deal out of everything even when not necessary.
Brooke is starting to turn into Simko he's always PMSing
Simko by Sloan Mcknight May 20, 2008

simkungdan 

simkungdan (심쿵단) is a subfandom nickname for engenes who adore Sim Jaeyun. they used to be known as "jakeys," but Jake changed their name to "simkungdan," which means "heartbeat." simkungdans are jake's heartbeat.
simkungdans are as devious and as intelligent as they come. they would go to any length to keep Sim Jaeyun safe.

"don't talk about sim jaeyun unless you're praising him."
simkungdan by simkungdan December 11, 2021

Off the Simmons 

A state of mind only marijuana may induce, during this state one is often filled with joy, ease, and, relaxation
“Yo nick, I’m off the Simmons right now”

Nick: “I am the Simmons”
Off the Simmons by Yah mean December 5, 2019

Joseph Simmons III 

A really cool person. Secretive guy. Cool.

FDS SIMÃO 

What you say in Portuguese when someone does shit. If translated literally it means something like "Fuck you Simon".
Simão was a famous Portuguese student of the renowned NOVA University of Lisbon that nobody ever understood how he managed to enter to such a reputed institution.

In the meanwhile, the expression has spread nationally and is now used in a wide range of contexts.
*Person 1*: "Dude, I missed all the classes in the last 3 months. Can I have your notes, please?"
*Person 2*: "FDS SIMÃO"
FDS SIMÃO by Jonhy126 October 17, 2018
More from Urban Dictionary

piddlefart

verb. To waste time doing nothing.
Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026
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