Tzoah Rotachat (Heb.: צוֹאָה רוֹתֵחַת, tsoah rothachath — "boiling excrement") in the Talmud and Zohar is a location in Gehenna (Gehinnom) where the soul of a Jew who committed certain sins is sent for punishment. This form of punishment is cited as being of extreme nature, if not the most extreme, in the sense that those individuals sentenced there are not given relief even on Shabbat, and are not released after the standard twelve-month period.
The Babylonian Talmud lists the cause for a Jew being sent to Tzoah Rotachat as "all who scoff at the words of the wise men (i.e. Chazal) is judged in Tzoah Rotachat". The Talmud Bavli also hints that the punishment has more of a physical implication to it. Rashi writes that he who engages in "excessive scoffing" (the exegesis here involves switching the "ה" of "להג" and replacing it with a "ע", as they both are one of the five guttural sounds) (the former part of the verse) is met with the second part of the same "straining of the flesh", essentially being judged excessively (straining) of his.
The presence of Jesus the Nazarene in boiling excrement is one of the disputed references to Jesus in the Talmud.Onkelos raises up Yeshu by necromancy, and asks him about his punishment in Gehinnom. Jesus replies that he is in "boiling excrement."
Onkelos the son of Klonimus..desired to convert himself (to Judaism)..he brought Yeshu (forth by means of/in) Séance..(Onkelos queried to Yeshu) whom is of importance in that world? He (Yeshu) answered him; Yisroel (the children of Israel). (Onkelos furthur queried) what/how (do you advise) to cleave to them? He (Yeshu) answered; "their benefit (lit. goodness) seek, their harm (lit. evil) do not seek (as) all/whomever touches them (with intent to harm) is as if (he) is touching the pupil of his (god's) eye". He (Onkelos) said to him (to Yeshu); the judgement of that man is how/what? he (Yeshu) said to him (to Onkelos) "in excrement (that is) boiling".