1) A general term for audio gear from Chinese brands. Nowadays it mainly refers to in-ear monitors (IEMs, earphones) made by Chinese brands. They range from being very cost-effective to being very upmarket.
2) An addictive potent drug that starts out cheap but gets ridiculously expensive to achieve that same 'high' again.
1) Examples of Chi-fi brands (in general) include FiiO and Shangling. Examples of Chi-fi brands (IEMs) include KZ, Moondrop, Tanchjim, TINHIFI, BLON, Fearless Audio, etc.
2) I used to have plenty of money in my savings, that is until I got hooked on chi-fi. Now I'm broke. Grrrrr, chi-fi...
When a Female (or Male, but that's just nasty) eats a packet or 2 of Pop Rocks, the candy that "sparkles" in your mouth, and then proceeds to blow a Male.
I only payed for a regular blow job 'cuz I thought the chick might have some disease or something but then she gave me a Chi-Town Fizzle! Man, that was a great surprise! Definitely worth the $40.