The only appearance of "almosting it" in James Joyce's Ulysses, Episode 3, Proteus:

After he woke me last night same dream or was it? Wait. Open hallway. Street of harlots. Remember. Haroun al Raschid. I am almosting it. That man led me, spoke. I was not afraid. The melon he had he held against my face. Smiled: creamfruit smell. That was the rule, said. In. Come. Red carpet spread. You will see who.

Haroun al Raschid was the Caliph that Shahrazad entertained for 1001 nights.  ¶ 9:31 PM