Sigh Day. Is a day that drags on and won't seem to end. Can be any day of the week however is most common between Thursday & Friday when the end of the week is near.
Today just keeps dragging on, it's not even lunch yet. What a sigh day.
Def- the repetitive release of sighs in lieu of actual words used to passive aggressively attempt to communicate: frustration, resentment, contempt, anger or some other feeling that grows inside when one has swallowed their words and silenced their truth. Used almost exclusively by folks who aren't even aware how disconnected they are from authenticity.
auditory passive aggression
He said nothing, just gave a lengthy sigh-a-thon. Who knows how he felt about my new job.