Guy 2: That's INTENSE! What was she saying?
Guy 1: She was like MORE YERM MORE YERM!
An entertainer, or class act. (Usually a male)
Someone who is likable, and amusing at the same time.
Prefixes describing the person like small, big, tiny etc. can be used. For example, Big Yerm.
Also the time it takes for the mean synodic month to fall half a day behind the 29.5 day cycle.