A practical joke where one purchases several Nickleback songs on the bar jukebox just before leaving. It's a way to ruin everyone's night by forcing them to listen to Nickleback without having to suffer through it yourself.
Bro 1: Man, who played all these Nickleback songs?
Bro 2: I saw Shirpo at the jukebox just before he left, I bet he Nicklebacked us.
Bro 1: That motherfucker....
Shorthand for any terrible, redneck, cousin-fucking band using overblown vocals, unimaginative guitar riffs, clichéd lyrics an 11-year-old could write, and generally mind-numbingly boring, predictable musical devices in the vein of Creed, another horrifically unoriginal, grating band, but with shitty Christian lyrics.
"Hey sexy, I've got tickets to see Hinder, Blue October, and Finger Eleven..."
"Eww! Nicklebacks suck!" (Maces him and lights his mullet on fire)