Mark Hughes deemed it 'predictable' to hear his own supporters singing about his precarious position after the Southampton manager moved a step closer to the sack.
The Saints took the lead through Stuart Armstrong but went on to lose 3-2 at Craven Cottage.
Chants could be heard coming from the visitors about Hughes, including singing about him being sacked in the morning and that he did not know what he was doing.
Asked about the dissent from his own fans afterwards, Hughes said: 'It's all quite predictable. It is what it is. I don't think anybody was surprised by it.
'Everybody is frustrated because our fans come see us play and they've witnessed similar games in the past where we've done OK and their frustration is us not getting the result over the line.'
Southampton chiefs believe they were mistaken in waiting so long to sack Hughes' predecessor Mauricio Pellegrino last season.
Hughes is now under intense pressure and continued: 'There are always questions, there is always noise, there is always an opportunity for people to question your position or your work.
'It doesn't faze me. I've gone through these periods before. It is what it is. You just get on with it.'