ilcb
It stands for 'I Love Chocolate Brownies' often used in text messages when someone is requesting that they should get some food and is hungry for brownies.
Text:
Chris: I'm hungry wanna get some food?
Alanna: me too. Ilcb should we get some?
Chris: yeah sounds good
Chris: I'm hungry wanna get some food?
Alanna: me too. Ilcb should we get some?
Chris: yeah sounds good