“Don’t kvitsh when you see the bill.” (NJY)

“When I walked in, she gave a kvitsh you could hear in Canarsie.” (NJY)

"Reb Avraham used to utter a kvitch – a high-pitched, suppressed cry — every so often while davening, even during Shemoneh Esreh (heard from Rabbi Nachman Burshteyn. This may be related to the 'silent scream' which the Rebbe mentions in Sichot ha-Ran, sec. 16.)." (source)