What does ‘Bollocks’ mean?

Perhaps one of the most internationally famous British slang terms, ‘bollocks’ has a multitude of uses, although its top ones including being a curse word used to indicate dismay, e.g. ‘Oh bollocks’; it can also be used to express derision and mocking disbelief, e.g. ‘You slept with Kate Upton last night? Bollocks…’; and, of course, it also refers to the scrotum and testicles.

For example, ‘I kicked him right in the bollocks when he wouldn’t let me go past.’