Pre-munch is essentially food that has already been munched but accidently leftover from a previous person, is then munched again by another person.
Food that has been chewed, but leftover. IE. the act of previously being munched on food. Food that has literally just about to be eaten and has freshly been chewed on.
Greg was eating a carrot while drunk, left some dangling of a pre-munched carrot. Jenna then proceeded to grab that carrot for a bite only to find the pre-munch crumbling to bits before taking a bite. "Dude, I just totally ate your pre-munched carrot..."
This happens right before pushing out a huge tank
Carlos "Hey this morning I took a huge tank but before that I kept shooting mini missiles.
Zack " Dude you took a pre-poop"
cheating before you got into a relationship with someone
“why would you pre-cheat on me you should’ve known that you’d date me”
A young actor named Matt that is a premadonna
That kid is a real pre-matonna
The almost real party before the realist birthday party happens
Tomorrow is my birthday so today we are pre-birthdaying
Pre-Morning (The time between 3 am and the time you normally wake up, notably marked by a mid-pre-morning out of bed ritual such as eating, urinating, pooping and the like while still half asleep, normal sleep activity resumes after the mid pre morning ritual has taken place.)
Justin wakes up at 4:30 in the pre-morning, stumbles out of bed, urinates (making only half of it in the toilet, the rest on the seat.) stumbles back to bed, and passes out till 11:00 am
David wakes up at 3:00 in the pre-morning, climbs out of bed, stumbles to kitchen, makes a peanut butter sandwich, eats the sandwich, barely makes it to his bedroom, literally falls into bed with peanutbutter sandwich still in hand. wakes up the next morning realizing theres peanut butter everywhere, and he has to crap really bad.