What does "noch mal" mean in the following sentence?
Warum er sich, Scheiße noch mal, erhängt hat?
Context: A teenager is talking with his therapist about his father that has hanged himself a few months ago.
Obviously, the father has only hanged himself only once, so "noch mal" cannot mean "once again". This is the only meaning I see in https://www.wordreference.com/deen/nochmal (AFAIK there is no difference in meaning between "nochmal" and "noch mal").
I considered the possibility that "noch mal" refers to the act of being told why the father has killed himself), but that doesn't make sense either because it's clear from the episode context that nobody has ever explained to the son why his father has committed suicide.
Maybe it's just a figure of speech that emphasizes how much the teenager wants an answer?
Source: Dark TV series, 1st season, 1st episode, 9:24 minutes