Sifl and Olly, “Crescent Fresh”

I’m just a chick, so answer me quick.
I love Jethro Tull’s song “Thick as a Brick”,
But is he crescent fresh?
Please, I’m so distressed!

Tull-ity-toot his flute-ity-flute
Though it seems un-cress, he rocks with the best,
So, yes, he’s crescent fresh!
Aqualung, my friend!