It follows Cami Li's expletive-ridden eviction on Monday night which aired lived on Channel 5.
While it did broadcast after the 9PM watershed, Cami's dirty mouth forced Emma to apologise to viewers more than once.
In one outburst, Cami said of Perez Hilton: "I was like 'I'm going to slit this motherf**ker's throat'"
Ofcom has already had plenty of complaints over the language, despite the constant warnings at every adbreak.
So far this series the TV watchdog has received a total of 2,600 official complaints. More than HALF are about Perez Hilton's antics, from his almost-naked sexual dancing to his comments that have seen him warned three times now.
The past week (Monday Jan 19-Jan 26) has seen a further 222 complaints with more than 100 alone made over last Sunday's show.
Those numbers compared to a total of 1,900 complaints for BOTH of last year's CBB series together.
It means that Big Brother will probably have no problem keeping its title as the UK's most complained about show for another year.
As with all of the complaints to Ofcom, the watchdog will assess them and decide whether or they should be fully investigated.
Celebrity Big Brother 2015 airs nightly on Channel 5 with a live double eviction TONIGHT ahead of the final on Friday.