BT Ber 48a(6) :רבא אחוי לשמי טללא‏ : pointed to the highest part of the ceiling
See the entire entry for ṭellāl, ṭellālā n.m. shade; shadow; protection

BT Ber 48a(6) :רבא אחוי לשמי טללא‏ : PN pointed to the top of the ceiling
See the entire entry for šmayn, šmayyā n.m.pl.t. heaven; ceiling