One who eats all their friend's cereral at his/her friends house and eats all the cereral at at Walmart without waiting to pay for it.
Person 1: Would you like a snack?
Cereal Killer: do you have cereal?
Person 1: yes...
Cereal Killer: (runs away)
(Comes back with all the cereral his/her friends have and eats it in under 5 minutes)
Someone who who eats NOTHING BUT CEREAL every single day for breakfast and constantly buys cereal and even sometimes steals yours AND IT'S REAL GETTING REALLY FUCKING ANNOYING WHY DID YOU EAT MY CURIOUSLY CINNAMON JIMMY THAT SHIT'S EXPENSIVE AND YOU FUCKING KNOW IT
Employee #1: Damn, didn't that guy buy cereal like last week?
Employee #2: Yeah, but he's a cereal killer.
*Oh btw i don't actually know a guy called jimmy so it isn't an inside joke OKAY!?
The dust at the bottom of the cereal box.
The last bowl always has cereal cocaine.
When you eat cereal out of a girls vagina
Me: Can I borrow some milk?
Friend: Yea why?
Me: This girl is about to get cereal bowled.
A bowl of cereal that has enough milk to have a second small bowl of cereal without adding more milk
I ate some casual cereal while I watched saturday morning cartoons
The type of cereal you would eat before or after intercourse.
I'll be back, I'm eating my seductive cereal!
When a man cums into a females mouth then dips his balls in her mouth like a bowl of cereal
Hey hun wanna do The Cereal Bowl tonight?