Definitions by JewForensicsGirl

I'm Up 

Equivalent to the phrase "I'm up for it," but abbreviated. It's similar to saying "I'm down." Meaning you're interested in joining in on the activity suggested in conversation.

Ron: I'm really in the mood to get ice cream.
Fred: I'm up.

I'm Up by JewForensicsGirl March 5, 2011

CSB

Cool story, bro. When someone tells you a boring story that really needn't be shared. Sarcastically replied.

Fred: "Yesterday I got a cut, so I put a band-aid on it."
Nick: "CSB."

CSB by JewForensicsGirl May 8, 2010

KFP

Kosher for Passover
Able to be consumed by Jews during Passover

"Can I eat this bread if I'm Jewish?"
"No way, man, it's not KFP since it has yeast in it."

KFP by JewForensicsGirl April 3, 2010