kish·ke also kish·ka 
(kĭshkə)
(kĭshkə)n.
1. Beef or chicken intestine that is stuffed with a seasoned mixture of matzo meal or flour, onion, and suet and is prepared by boiling and roasting. Also called derma, stuffed derma.
2. also kishkes Informal The abdomen or guts: The ball hit me in the kishkes.
[Yiddish, from Russian kishka, intestine; see (s)keu- in the Appendix of Indo-European roots.]