The phenomenon whereby girls colour in their eyebrows very thick and very dark, and in more extreme cases, get thick, black eyebrows tattooed on. Often seen in the North West of England, especially in Liverpool and the surrounding areas, hence the name. Often seen on Katie Price wannabes, and rough females in general.
'hey, my eyebrows aren't looking too liverpool today are they?'
'suzi is from liverpool, you can tell by her distinctive liverpool eyebrows'