He made the allegations in a police interview seen today by the jury at Southwark Crown Court.
The man said today under cross-examination that the alleged assault felt like it lasted an eternity.
I have never had anyone speak to me like that, ever.
Kevin Spacey arriving at Southwark Crown CourtCarl Court/Getty Images
It makes no sense that someone would do that to another human being.
It absolutely did happen, he added.
The man countered: That was my impression and thats what I smelt.
Gibbs told jurors earlier this week they would hear many damned lies and some deliberate exaggerations during the trial.
Spacey himself may not testify but is expected to attend each day the court sits.
The manallegedSpacey grabbed him like a cobra, made hardcore remarks to him and was unrepentant about his actions.
The prosecution has labeled him a sexual bully.
Spacey said before the trial he expects to land acting work immediately if he is found not guilty.
