blech in English dictionary blech Meanings and definitions of "blech" (slang) An imitation of the sound of gagging, used to express disgust or disdain. (slang) To have the vomiting reflex triggered. interjection (slang) An imitation of the sound of gagging, used to express disgust or disdain. noun (Judaism) A metal sheet used to cover stovetop burners on Shabbat to allow food to be kept warm without violating the prohibition against cooking. verb (slang) To have the vomiting reflex triggered. more Grammar and declension of blech blech ( third-person singular simple present bleches, present participle bleching, simple past and past participle bleched) blech (plural blechs) blech (third-person singular simple present bleches, present participle bleching, simple past and past participle bleched) more Images with "blech" Sample sentences with "blech" Declension Stem Try again Available translations Eastern Yiddish German Greek Hebrew Portuguese Yiddish Authors