울릴지어다 (ulliljieoda) is a powerful and archaic command form that translates to 'Let it shake' or 'Make it resound'.
You will almost never hear this in everyday Korean! The ending ~지어다 is a majestic, formal command, similar to a royal decree or a biblical proclamation, which adds a huge amount of dramatic weight.
In 'Guerrilla', ATEEZ uses this phrase to declare that their rebellious sound will make the entire ground shake, perfectly capturing the song's epic and revolutionary spirit.
Ready to wake up a numb world? In "Guerrilla", South Korean group ATEEZ goes on an all-out sonic raid against a society drained of feeling. Right from the start, the lyrics complain about total burnout with "지겨 지겨워" (sick and tired) and describe a gray existence where emotions vanish and even laughter is suppressed ("웃음은 통제가 되어" [laughter is controlled]). Instead of accepting life as mindless dolls with covered eyes and blocked ears ("똑같은 인형처럼 살 순 없잖아" [we can't live like identical dolls]), they choose rebellion. Their weapon of choice isn't violence, though. They declare "음악이 무기 hooligan" (music is the weapon, hooligan), rallying everyone to shatter the silence.
English learners will catch great battle-cry verbs and idiomatic phrasing here. When they shout "판을 뒤집어" (flip the board), it means completely turning the tables or changing the game. The members call themselves rebels running an underground resistance, repeating the fierce rallying cry: "춤을 춰, break that wall" (dance, break that wall). It is loud, dramatic, and bluntly refuses to whisper. Through flashing lights and booming sound, they command everyone to lift their heads, confront the gray world, and make noise until everybody finally wakes up.