Thunder is SEVENTEEN’s sonic lightning bolt, a shout-out to those electrifying nights when excitement crackles in the air and your whole body feels super-charged. The members compare their sudden rush of adrenaline to a flash of lightning that splits the sky, urging everyone to drop their worries, gather together, and jump into the moment. Phone calls keep buzzing, hearts keep racing, and the onomatopoeic jjirit jjirit mimics that sizzling buzz before thunder strikes, capturing the thrilling anticipation of something unforgettable about to happen.
More than just a party anthem, the song celebrates friendship and youthful confidence. SEVENTEEN invite listeners to rewrite their “DNA,” crank up the energy, and drive straight through the clouds—no detours, no doubts. With every chant of “T-H-U-N-D-E-R,” they remind us that unforgettable memories are made when we unite, charge the night with courage, and let our inner storm light up the sky.