Kaynahorah(kayne'-a-hurr-rah) Literally, no evil eye. Pronounced in order to ward off the evil eye, especially when speaking of one's good fortune. "Everyone is the family is happy and healthy, kaynahorah." "He'll be 86 in three weeks, kaynahorah." Another way to ward off the evil eye is to quickly spit three times (We're not talking hawking a big loogie. This is more like lightly spitting a poppy seed off the tongue.) "My daughter found a nice guy and it looks as if he's going to propose. Pthui, pthui, pthui."
Keppie(kep' pee) Head, diminutive of keppellah. A child's head. "Here, tatellah. Put your keppie on my lap and gay shluffen (go to sleep.)"
Kibbitz(kib'-bits) To butt in, to mind other people's business, to watch over the shoulder of those playing cards and put your two cents in. Not to be confused with kibbutz (kib-bootz), which is a collective farm in Israel.
Kinder(kin' der) (rhymes with Linda) Children. "Shhh! Zug gornisht! The kinder are listening! (Shh! Say (Zug) nothing! The children are listening!)
Kish mier en toochis(kiss mier en tuch' is) Kiss my butt! All though it translates to kiss my but, in Yiddish it is not meant so derogatory mean get out of here, or don’t bother me.
Kluge Mensch(klu-geh' mensch) Wise person
Klutz(rhymes with "mutts") You don't know this one? It's practically English! A clumsy, uncoordinated person. "That klutz took up skiiing? He'll be lucky if he doesn't kill himself!"
Knish(Ka nish’) A doughy snack stuffed with potato, meat, or cheese.
K'nocker(k-nock' er) (the K is pronounced) A big shot (often used sarcastically) "He got elected president of the condo board and now he thinks he's a big k'nocker."
Kockeputzi(ca-ca-poot'-sie) A mish-mash, a bunch of stuff thrown together. "For dinner, I just opened a bunch of cans and made a kockeputzi."
Kosher(Ko’ sheh) Correct according to Jewish law, normally used in reference to Jewish dietary laws; (slang) appropriate, legitimate.
Kum gesunt(kim' gezunt) Return in good health
Kup voy tug(cup vey Tug) Master head ache, migrane
Kvell(Kvell) To burst with pride from the achievements of your loved ones. (Two Jewish mothers talking: "Oi! I'm kvelling! My son finally graduated from law school!" "N.Y.U.?" "And why NOT me?")
Kvetch(kvetch) Complain. One can kvetch (complain) or be a kvetch (a complainer)
