Okay, these are some of the terms that we coined in sanskrit for some commonly used American (English) expressions. The sanskrit is almost a literal tranlsation of the English, and its just for fun
Thanks to the umd_samskritam group for these contributions (note: I have not followed the ITRANS)
Kim Upari ? - Whats up ?
Katham Prachalati bhoH ? - Howzit going, dude ?
Tat Sheethalam - Thats cool
Parihaasam Karothiva ? - (you) kidding me ?
saithyam.h anubhavatu bhoH - chill out dude !