“Stop shtering us by drumming on the desk.” (Weiser)
“Don't shter the shiur with all your simple kashes.” (Weiser)
“His drumming was a shter to my concentration.” (Weiser)
“My kid brother is always a shter to my learning.” (Weiser)
"The boys who collect ARE doing a mitzvah, but if their sole reason for collecting is the idea of riding around in a limo and getting served liqour in fancy homes, it kind of shters the intent and makes it a little suspect." (source)