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A last minute change of plans or possibly risky judgement call between a group of best friends pertaining to their plans for the evening. Based on the saying 'carpe diem', or 'Seizing the Day'. Usual partners in crime include rum, tequila or both and a walk of shame from a significant others house the following morning.
"Instead of sitting inside on a Wednesday evening and doing nothing, lets go to the bar down the street, get rip roaring drunk amongst friends and strangers, and then let hot guys buy us drinks and take us home."

"Now that's seizing it like no tomorrow! Be ready in 10!"
Seizing by Lockerazzi Monster December 30, 2009
Related Words
A 14 yo kid who plays critical ops. No doubt the best sniper in Asia.
Seizing literally 360° flicked noscoped him.
Seizing by Noicing all the way June 12, 2020
A facial expression where you smile with your eyes;
giving someone happy eyes
look at that girl... she's totally smizing at me

i don't know why he hasn't come over yet, i've been smizing at him all night!
smizing by Jena Bo Bena September 16, 2012

sight sizing 

1. Looking at a woman's breasts and being able to tell her cup and bra size
<woman takes off her shirt>

woman:are you good at sight sizing, sir?

man:why yes i actually am. you are about a 34a, right?

woman:thats right. howd you guess?

man:im good at sight sizing.
sight sizing by Fandangoooooooo September 3, 2006

Sizing up 

The act of checking someone out to see if you can take them in a fight
Chad told me he was sizing up brad and he thinks he can take him.
Sizing up by DomToretto July 17, 2021

delusional sizing 

1.when someone pretends they are a few clothing sizes smaller than they are (i.e. Mariah Carey)

2. when a man thinks his cock is much larger (or smaller) than it actually is
Mariah swears she wears a size 6...her assistants replace size 12 tags with 6's to accomodate her delusional sizing

Some guys love to flash their cocks because they think it is bigger than it actually is...when people laugh, they may realize it's a case of delusional sizing
delusional sizing by Meadow Soprano November 16, 2005
More from Urban Dictionary
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

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
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