What does jack the lad swing mean?

Answer 1

Its a firestation out in london

But people know it most because if JLS the boyband (Aston, JB, Oritse and Marvin)

Answer 2

Im not sure but *jls there initials are jack the laad swing

Answer 3

"Jack the lad swing" can be interpreted as lively, carefree or brash behavior typically associated with a young man trying to impress others. It often involves boastfulness and a sense of bravado.