Slothrop
Tight but Polite
I think a lot of the time it's refusing to become implicated that's the important part - it can be partly a way of enjoying the music without having to buy into the culture or admitting you like it - maybe you've always taken it as axiomatic that manufactured pop is rubbish and you can only accept Kylie into your life by maintaining an ironic distance, maybe you're a middle class white suburbanite and although you love the tropes and sounds of jungle you think you'd look get the piss ripped out of you if you actually started taking them seriously in relation to your own lifestyle.The feeling I normally get around people enjoying things ironically is that whatever cultural product they have chosen as their ostensible motivation actually means rather little to them - there is no real connect.
The ironic attitude is an enabling attitude to have, as one can put oneself in a range of social contexts without becoming properly implicated (one refuses to identify) nor affected (one refuses to submit).