foot system

It means the imperial system. It contains units such as inch,foot,pounds and miles. It's used when people forgot the name imperial system.

Person 1:yo how tall are you.
Person 2:around 183cm
Person 1:what is that in foot system.
Person 2:I think its 6ft? I dont use foot system usually.

Asleeo

a typo of asleep usually made by people who don't sleep. It's easy to have typo when it's dark and that's how it is used.

Person 1: It's, so late you should sleep.
Person 2: Bro im not even asleeo