Ten points[1] to the first person to identify the source of this piece of traditional poetry...

Teegul teegul eeya ka,
Awi awa ahdi ah;
Ubba ubba ahdi aye,
Ahdi ahdi idi aye,
Teegul teegul eeya ka:
Awi awa ahdi ah!

[1] And points mean prizes![2]
[2] No actual prizes offered. Additional restrictions apply, call for important lease details.