Smunday 

Staying up all night from Sunday to Monday morning. Two days rolled into one

Stayed up all Sunday , still awake Monday morning. Feels like a Smunday

Lets get on the Sunday sesh , love a good Smunday

Only planned going out for abit Sunday evening. Now it's Monday . Had no sleep. Got work in couple hours, been a messy one. Definitely a Smunday

Smunday by PeckishPeg July 22, 2018

Smunday 

Noun; The comination of the days Sunday and Monday. Often used to describe a 48 hour period of sleeplesness between Saturday and Tuesday.

"Dude, I havent sleep since yesterday, it's been one hell of a Smunday."

Smunday by KungFuCorey December 11, 2006

Smunday 

When you take Monday off work because you just need an extra day off. It's not Sunday and doesn't feel like Monday, it's Smunday. Similar to how Brunch is a hybrid between Breakfast and Lunch.

I was so tired after the weekend I called into work sick this morning; I'm taking a Smunday.

Smunday by kickback chick February 6, 2012

Smunday 

hours between Sunday A.m till you go to work after the weedend

I have to go in to work early Smunday morning

Smunday by CKing2051 June 19, 2019

smunday 

figuratively spoken, the day between sunday and monday;

actually its a monday where you decide to not DO or GIVE a fuck, just like on sundays

the perfect smunday is a day, where you don't even know if it's sunday or monday

A: Are u going to school/college/work tomorrow?
B: Nah, it's smunday.

A: What day is it? Monday or Sunday? I didnt left the house today.
B: No fkin idea. Me neither.

smunday by norbart, the pirate June 18, 2012

Smunday 

Sunday/ Monday-

The Days you spend recovering from Thriterday.

I am having the rough Smunday.

Smunday by Marlenac November 26, 2016

Smunday 

The day between monday and tuesday

Friend 1: What did you do smunday

Friend 2: smelt a mouse

Smunday by Jaythenutgod July 27, 2018