"Wa-pa-pa-pa-pa-pa-pow!
Wa-pa-pa-pa-pa-pa-pow!
Wa-pa-pa-pa-pa-pa-pow!"

from Ylvis – The Fox - What Does the Fox Say? Lyrics on Rap Genius

Meaning

Abercombie and Fitch have blatantly taken the song and adapted it to their commercial/spoof (warning — extremely painful to watch) —

https://www.youtube.com/watch?v=2TJU1r2mazU

To help improve the meaning of these lyrics, visit “The Fox - What Does the Fox Say?” by Ylvis Lyrics and leave a comment on the lyrics box