The Coronation Street legend, who is up for eviction this week alongside Martin Kemp and Prince Lorenzo, told Julian Clary that she hopes the housemates who picked her "rot in hell".
As she watched Coleen rise out of the hot tub, Julie joked to Julian under the breath: "She can get her fat arse out."
Julie further warned her fellow housemates to avoid "snivelling around" her, branding them "two-faced b**tards".
Speaking in the Diary Room prior to Julie's outburst, Martin expressed his satisfaction with her nomination, hypothesising that the house has seen a "dark side to Julie" and admitting he is "glad" she is up.
When talking to Big Brother herself immediately after hearing of her nomination, Julie said she was "shocked" and accused fellow contestants of ageism, before conceding that she "is not part of the gang".
Celebrity Big Brother airs nightly on Channel 5.