Fognini made the remarks during a stoppage in his straight sets defeat to Tennys Sandgren this afternoon on Court 14.
Fognini has a history of on court tirades with the Italian defaulted from the 2017 US Open after a foul-mouthed rant to an umpire in his first round match. "The court was not really good", he said in Italian.
"Something happened on court", he added. Three years later, he used "misogynistic language" when talking to a US Open female umpire.
"If somebody feels offended, I say sorry with no problem".
Fognini received three fines from the International Tennis Federation totalling almost $A35,000.
Fognini was fined nearly $40,000 at the All England Club in 2014 for a string of obscene outbursts.More news: Man City completes $79 mil. Rodri deal
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Part of the original penalty is a two-slam ban.
The facility was actually bombed by Germany during World War II, severely damaging the Centre Court roof.
Fognini was in no mood to talk about what his latest outburst could mean for his already poor disciplinary record.
Grand slam officials are certain to hit the fiery baseliner hard, given Bernard Tomic was fined $20,000 two years ago for saying he felt bored at Wimbledon.
Fognini's conduct was deemed a major offence by the Grand Slam Board and he was given a suspended ban of two slam tournaments covering two years as well as a fine of more then £70,000, half of which was suspended.
Update: Fognini apologised later in the day for his outburst.