Top definition
When the Wi-Fi is super fast that it feels as if you are the only person on Earth surfing the Net at that moment.
Xi Fi is like "Wi Fi 2.0"— a seamless experience that you only experience once in a blue moon.
via giphy
by MathPlus September 01, 2017
Get the mug
Get a Xi Fi mug for your mate Nathalie.
buy the domain for your cat blog