Reference for Yevamot 110:15
כי אתא רבין א"ר יוחנן העראה זו הכנסת עטרה אדרבה בר בר חנה ודאי פליג אדשמואל מי לימא פליג
does not this refer to friction of the membrum! — No; friction of the corona. When R. Dimi came<span class="x" onmousemove="('comment',' From Palestine to Babylon. ');"><sup>34</sup></span> he stated in the name of R. Johanan: The first stage is constituted by the insertion of the corona. They said to him: But, surely, Rabbah b. Bar Hana did not say so! — He replied: Then either he is the story-teller<span class="x" onmousemove="('comment',' Lit., 'liar'. Rabbah h. Bar Hana was a well known teller of hair-raising stories (Cf. B.B. 73aff). and sometimes made self-contradictory statements on questions of halachah also (cf. Hul. 97a, Kid. 75b). ');"><sup>37</sup></span>